Answer:
a) The total dollar amount = $513.2
b) The interest payment = $13.20
Explanation:
Use following formula to calculate the real interest rate:
1 + Real Interest rate = (1 + Nominal Interest rate ) / (1 + Inflation rate )
1 + Real Interest rate = (1 + 7% ) / (1 + 4.25% )
1 + Real Interest rate = (1 + 0.07 ) / (1 + 0.0425 )
1 + Real Interest rate = 1.07 / 1.0425
1 + Real Interest rate = 1.0264
Real Interest rate = 1.0264 - 1
Real Interest rate = 0.0264
Real Interest rate = 2.64%
a) The total dollar amount
A = P x ( 1 + r )^n = 500 x ( 1 + 0.0264)^1 = $513.2
b) The interest payment
Interest payment = $513.2 - $500 = $13.20