Answer:
r = 100([tex]\frac{A}{P}[/tex] - 1 )
Step-by-step explanation:
Given
A = P(1 + [tex]\frac{r}{100}[/tex] ) ← divide both sides by P
[tex]\frac{A}{P}[/tex] = 1 + [tex]\frac{r}{100}[/tex] ( subtract 1 from both sides )
[tex]\frac{P}{A}[/tex] - 1 = [tex]\frac{r}{100}[/tex] ( multiply both sides by 100 )
100 ( [tex]\frac{P}{A}[/tex] - 1) = r
