Answer:
7.02% per annum
Explanation:
The computation of the highest rate is shown below;
Given that
Present value be $85,000
PMT is $1,450
NPER is 72
Future value be $0
The formula is
=RATE(NPER,PMT,-PV,FV,TYPE)
After applying the above formula, the rate should be 0.59% per month
Annually, it should be
= 0.59% × 12 months
= 7.02% per annum