Answer: $20981.52
Explanation:
Loan amount = $84600
APR = 7.1% = 0.071
Monthly interest rate = 0.071/12 = 0.0059167
Number of months NPER = 72
Future value FV = 0
Monthly payment = PMT(0.0059167, 72, -84600, 0, 0) = $1466.41
Total loan payment = 72 × $1466.41 = $105581.52
Interest paid = Total loan payment - Loan amount
= $105581.52 - $84600
= $20981.52