BusCalc — Business & Trade Calculations

Find units and revenue needed to cover fixed costs. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"fixed":10000,"price":50,"variable":30}}

Evaluate a job, restaurant production run, delivery route, equipment purchase or staffing plan against explicit cost, capacity, earnings and timing limits. Return favorable/unfavorable feasibility, breaking points, permitted repairs and verification priorities. Zero permitted change locks an item. Uses original bounded workflow models built on established arithmetic and constraint methods; no world-first, forecast or obtainable-saving guarantee. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"fixed":10,"hoursHigh":6,"hoursLow":4,"maxRevenue":20,"maxSaving":10,"maxTime":1,"milesHigh":100,"milesLow":70,"mode":"delivery","perMile":0.4,"revenueHigh":180,"revenueLow":150,"targetHourly":20,"windowHours":6}}

Build a fixed-rate equipment loan amortization schedule. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"annual":0,"months":12,"principal":1200}}

Recover economic ownership and running cost at realistic utilization. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"fixed":1000,"hours":1000,"life":3,"purchase":10000,"salvage":1000,"variable":2}}

Add or subtract two measurements, or multiply one length by a count, with fractional-inch entry and decimal conversions. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"feetA":1,"feetB":2,"inchesA":"6","inchesB":"6","operation":"add"}}

Calculate NPV from2..601 time-zero-first cash flows, present/future value, beginning/end annuities or equivalent annual value over up to600 whole periods. Explicit ratePercent inputs; unsupported overflow/underflow is rejected. Returns a calculation receipt with inputs, results, assumptions, validation checks and source. The receipt is unsigned, not independent certification. No private data, external lookup or arbitrary code execution. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"cashflows":[-100,60,60],"mode":"npv","ratePercent":10}}

Add your vehicle operating, ownership and driver costs, then divide by productive miles for the same period. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"costs":[{"amount":4000}],"distance":5000},"units":{"distance":"mi"}}

Solve numerical quadratic/linear equations, solve a small linear system, multiply or transpose matrices, or compute a determinant/inverse. Structured JSON matrices up to 8×8; singular or unreliable solves are rejected. No arbitrary code, symbolic algebra or unbounded optimization. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"matrix":[[1,2],[3,4]],"mode":"matrix","operation":"determinant"}}

Fetch EIA monthly state/sector electricity or natural-gas averages, seasonal reported US residential/wholesale propane/heating-oil prices, weekly gasoline/diesel references, or ECB daily rates. Not real-time utility tariffs. Electricity converted from cents/kWh to USD/kWh; gas USD/Mcf; liquid fuels USD/US gallon. Returns observation date, retrieval time, source, units and cadence; fuel also includes publication time. Not tick prices, bank execution rates or local retail offers. Old/unavailable data fails explicitly. Reference lookups are counted separately from successful math. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"kind":"fuel"}}

Convert cost and desired gross margin into price without confusing markup. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"cost":100,"margin":25}}

Calculate contained precious metal value, scrap payout, bullion premium, investment gain/loss, resale break-even or gold–silver ratio using explicit supplied USD prices. Optional price snapshots preserve source/time but are not independently authenticated. No live price is fetched by this tool. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"figures":{"metal":"XAU","purity":100,"spot":3000,"weight":31.1034768,"weightUnit":"g"},"method":"precious-metals-value"}}

Fetch a dated Gold API USD spot snapshot for selected gold XAU, silver XAG, platinum XPT or palladium XPD. Returns provider update time, age and units. Rejects old, malformed or unavailable quotes; never substitutes an invented or stale price. This is data lookup, not a calculation or dealer execution offer. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"metals":["XAU","XAG"]}}

Ten detailed methods: mixed collection value, entered dealer sale offers, refining settlement, bounded whole-item purchase baskets, inventory margin, fabrication quotes, transaction feasibility, equivalent-lot purchase offers, replacement-cost selling price, and partially unpriced purchase exposure. Seller prices are user-entered, never fetched. Supplied USD per fine troy ounce; no prices fetched. Enter zero for unused metal prices. All schema fields are explicit; inactive content-method fields are zero. Returns detailed rows and an unsigned replayable calculation receipt. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"figures":{"basis":250,"cash":270,"contentLow":95,"down":10,"margin":10,"maxDays":7,"metal":"XAG","offers":[{"bid":98,"days":2,"fee":0,"fixed":5,"name":"Dealer A"},{"bid":100,"days":10,"fee":0,"fixed":8,"name":"Dealer B"}],"ounces":10,"unknown":5,"up":10},"mode":"feasibility","prices":{"XAG":30,"XAU":3000,"XPD":1100,"XPT":1000}}}

Calculate probabilities, tails, percentiles, event relationships, Bayes updates, counts, expected values or Wilson/exact proportion intervals using one of 26 explicit methods. JSON numbers only; decimal probabilities. No distribution fitting, random simulation or real-world guarantee. API limits are tighter than the browser: hypergeometric draws 200, shapes/df 1000, Poisson mean 1000. Inspect assumptions and returned source URL. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"mode":"binomial","n":10,"p":0.5,"query":"exact","x":5}}

Find the ingredient cost of a batch and each sellable portion from package prices and quantities used. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"batchCost":30,"portions":10,"recipeEntry":"total"}}

Calculate fleet/driving/measured fuel plus separately counted idle or generator consumption, price sensitivity and total period cost; or currency-converted purchase cost including explicit markup and fees. Uses supplied figures only. Fetch references separately, then pass the selected rate/price explicitly. Results include units, formula, limitations and replayable receipt. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"figures":{"alternative":4.5,"burn":0,"distance":100,"gallons":0,"idleHours":0,"mpg":25,"other":0,"price":4,"vehicles":1},"mode":"fuel"}}

Find baseline profit, one-at-a-time endpoint changes, zero-profit thresholds and min/max profit across up to16 simultaneous rectangle corners. A threshold may be negative, outside the entered range, or undefined when slope is zero; none is an automatic recommendation. Returns a calculation receipt with inputs, results, assumptions, validation checks and source. The receipt is unsigned, not independent certification. No private data, external lookup or arbitrary code execution. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"baseline":{"fixedCost":1000,"price":50,"quantity":100,"variableCost":30},"mode":"contribution","ranges":[{"high":120,"low":40,"parameter":"quantity"},{"high":60,"low":40,"parameter":"price"}]}}

Recover annual overhead and owner compensation across billable hours. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"compensation":40000,"hours":1000,"overhead":10000,"profit":10000}}

Summarize 1–1000 numerical observations or fit unweighted least-squares y on x from 2–100 paired rows. Returns named descriptive results or slope, intercept, correlation, R squared and a prediction. No causal inference or time-series forecast. Inputs are structured JSON arrays, not executable expressions. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"mode":"describe","values":[1,2,3]}}

Find time between two clock readings, including an explicit end-day offset and optional excluded minutes. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"end":"17:15","endDays":0,"excluded":30,"start":"08:30"}}

Propagate2..8 hard intervals through sum/difference/product/quotient, or combine1..8 uncorrelated standard-uncertainty terms using entered derivatives. Interval arithmetic expands endpoints outward; statistical coverage factors do not establish confidence levels. Returns a calculation receipt with inputs, results, assumptions, validation checks and source. The receipt is unsigned, not independent certification. No private data, external lookup or arbitrary code execution. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"mode":"interval","operation":"product","ranges":[{"high":3,"low":2},{"high":5,"low":4}]}}

Convert compatible length, area, volume, mass, time, speed, force, pressure, energy, power, temperature or angle units. Check dimensions of two explicit products without evaluating arbitrary formulas. Offset temperatures are forbidden in products; money conversion is unavailable. Returns a calculation receipt with inputs, results, assumptions, validation checks and source. The receipt is unsigned, not independent certification. No private data, external lookup or arbitrary code execution. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"from":"ft","mode":"convert","to":"m","value":10}}

Four supplied-price methods: electricity measured kWh or input power/hours/count/load, and natural gas, propane or heating oil from measured fuel or useful heat/efficiency. Fetch dated EIA references separately; no price is fetched by math. Explicit units, inactive fields zero, period costs and price scenarios. Returns an unsigned replayable receipt. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"figures":{"comparison":0.2,"count":0,"entry":"measured","hours":0,"load":0,"other":0,"power":0,"price":0.16,"quantity":100},"mode":"electricity"}}

Calculate expected values, best current expected-value action, perfect-information upper bound, optional imperfect-signal information value and net value after information cost. Handles maximize payoff or minimize cost; does not infer probabilities, certify decisions or model risk aversion. Returns a calculation receipt with inputs, results, assumptions, validation checks and source. The receipt is unsigned, not independent certification. No private data, external lookup or arbitrary code execution. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"informationCost":5,"mode":"sample","objective":"maximize","payoffs":[[100,-50],[0,0]],"signalLikelihoods":[[0.8,0.2],[0.2,0.8]],"stateProbabilities":[0.5,0.5]}}

Fetch a US NWS location hourly forecast, associated station observation and active official alerts, or NOAA CO-OPS coastal water level at a seven-digit station. Coordinates rounded to 0.01 degree before provider lookup. Five-minute cache; source timestamps, missing values, quality flags and errors retained. Full future hours only, up to 168 returned. Not a calculation success, safety assurance or executable market price. No user job data sent upstream. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"kind":"location","latitude":34.17,"longitude":-86.84}}

Supplied-data work-window and limiting-condition analysis, conditional disruption costs, forecast revision decision impact on common valid hours, heating/cooling degree-hours with explicit load assumptions, rain capture volume, approximate dew point, paired temperature bias/MAE/RMSE, and mobilization/revisit economics. Up to 48 hourly periods, 24 per revision snapshot, 200 pairs; 16 KB API body limit also applies. Missing weather stays null; no safety clearance, fabricated observation, expected loss or agency endorsement. Returns replayable receipt. Call with arguments containing inputs (not flattened fields), optional units and optional modelVersion. Read required fields and exact enum choices from inputSchema. Do not pass the REST calculator field inside MCP arguments.

{"inputs":{"figures":{"crew":2,"endHour":18,"fixedCost":0,"hourlyCost":30,"maxHumidity":85,"maxPrecip":30,"maxTempF":90,"maxWindMph":15,"minTempF":40,"requiredHours":2,"startHour":8},"mode":"windows","periods":[{"endTime":"2026-11-05T09:00:00-06:00","humidity":60,"precipProbability":10,"startTime":"2026-11-05T08:00:00-06:00","temperatureF":60,"windMph":5},{"endTime":"2026-11-05T10:00:00-06:00","humidity":60,"precipProbability":10,"startTime":"2026-11-05T09:00:00-06:00","temperatureF":61,"windMph":5},{"endTime":"2026-11-05T11:00:00-06:00","humidity":60,"precipProbability":10,"startTime":"2026-11-05T10:00:00-06:00","temperatureF":62,"windMph":5},{"endTime":"2026-11-05T12:00:00-06:00","humidity":60,"precipProbability":10,"startTime":"2026-11-05T11:00:00-06:00","temperatureF":63,"windMph":20},{"endTime":"2026-11-05T13:00:00-06:00","humidity":60,"precipProbability":60,"startTime":"2026-11-05T12:00:00-06:00","temperatureF":64,"windMph":5},{"endTime":"2026-11-05T14:00:00-06:00","humidity":60,"precipProbability":10,"startTime":"2026-11-05T13:00:00-06:00","temperatureF":65,"windMph":5},{"endTime":"2026-11-05T15:00:00-06:00","humidity":60,"precipProbability":10,"startTime":"2026-11-05T14:00:00-06:00","temperatureF":66,"windMph":5},{"endTime":"2026-11-05T16:00:00-06:00","humidity":60,"precipProbability":10,"startTime":"2026-11-05T15:00:00-06:00","temperatureF":67,"windMph":5}]}}