Examples
Examples
Try the starting example
- Operating cost (USD)
- 10000
- Fare receipts (USD)
- 6000
- Passenger boardings (count)
- 2000
- Net subsidy (USD)
- $4,000.00
- Subsidy per boarding (USD/boarding)
- $2.00
Try another scenario
- Operating cost (USD)
- 12000
- Fare receipts (USD)
- 7500
- Passenger boardings (count)
- 3000
- Net subsidy (USD)
- $4,500.00
- Subsidy per boarding (USD/boarding)
- $1.50
Calculation method
Calculation method
Net subsidy (USD)
Operating cost−fare receipts; may be negative.
Subsidy per boarding (USD/boarding)
Net subsidy/passenger boardings.
Symbols and units
- a
- Operating cost (USD)
- b
- Fare receipts (USD)
- c
- Passenger boardings (count)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Accounting subsidy per boarding, not per unique passenger. Supported limits: All numeric inputs and computed intermediates must remain finite. Supported numeric input magnitude is zero or 1e-12 through 1e12 in absolute value; reject values outside this bounded range. All lists/JSON record tables are limited to 100 records unless a stricter bound is stated; reject malformed record arity and wrong member types. All numeric values must be finite. Lists contain at most 100 records; required lists must be nonempty. Rates, probabilities and fractions are entered as fractions, not percentages; fractions must be between 0 and 1. Use a single consistent user-selected currency for all amounts; no exchange-rate conversion.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.