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fin.profitability-index Calculator
Calculates the Profitability Index (PI = 1 + NPV / initial investment) as a capital rationing tool. PI ranks projects when capital is constrained — the project with the highest PI per dollar of investment maximises total NPV.
Inputs
Npv
Net cash in (positive) or out (negative) for the period. Enter negative values for costs, positive for receipts.
Initial Invest
Upfront cost — the negative cash flow at time zero in NPV/IRR analysis.
Wacc Pct
Reference formula or conversion factor shown for context.
Results
profitability index
Net profit after all costs (electricity, pool fees, hardware amortisation). Highly sensitive to coin price and difficulty — re-run frequently.
accept project?
Reference formula or conversion factor shown for context.
NPV
Sample size or count used in the calculation.
initial investment
The upfront capital deployed at time zero. This is the negative cash flow from which all future returns are measured.
PI = (NPV + C0) / C0
Sample size or count used in the calculation.
use for capital rationing
The proportional relationship between two quantities.