Functions & Formulae

Each applied formula has its own function page, with a signature, implementations, and tests.

Monetised cost-benefit comparison function

k(PV_B,PV_C) = (NPV,BCR)

Maps the present values of monetised benefits and resource costs to measures of net social value and relative return.

  • Net present value

    NPV = PV_B - PV_C

    Calculates the absolute difference between the present value of monetised benefits and the present value of resource costs.

  • Benefit-cost ratio

    BCR = PV_B / PV_C

    Calculates monetised benefits relative to resource costs when present-value resource costs are positive.