Simple interest calculation formula.
The simple interest amount is equal to the principal amount times the annual interest rate divided by the number of periods per year m, times the number of periods n:
simple interest amount = principal amount × (rate / m) × n
計算 the simple interest amount of principal amount of $5,000, annual interest rate of 6% and 時間 of 18 months.
Solution:
principal amount = $5,000
rate = 6%
m = 12 months/year
n = 18 months
simple interest amount = $5,000 × (6% / 12months/year) × 18months
= $5,000 × (0.06 / 12months/year) × 18months
= $450
