In: Economics
An interest rate of 21% per year, compounded every 4 months, is equivalent to what effective rate per year? Show spreadsheet solutions
r = 21%
The compounding period (m) = 12 / 4 = 3
Effective rate per year = (1 + r / m)m - 1
= (1 + 0.21 / 3)3 - 1
= 1.225 - 1
= 0.225
= 22.5%
spreadsheet solutions:
r | 21% |
m | 3 |
Effective rate per year | =EFFECT(21%,3) |
r | 21% |
m | 3 |
Effective rate per year | =0.225 |