Calculates an equivalent interest rate for the growth of an investment.
The number of periods for the investment.
The present value of the investment.
The future value of the investment.
the equivalent interest rate
if nper is less than or equal to zero
nper
if pv is zero
pv
rri(96, 10000, 11000); // 0.00099331 Copy
rri(96, 10000, 11000); // 0.00099331
Calculates an equivalent interest rate for the growth of an investment.