Answer:
13.28%
Step-by-step explanation:
The computation of the coupon rate is shown below
But before that determine the PMT
Given that
NPER = 12 × 2 = 24
RATE = 10% ÷ 2 = 5%
PV = $1,226.50
FV = $1,000;
The formula is shown below
= PMT(RATE;NPER;-PV;FV;TYPE)
After applying the above formula, the monthly payment is
= $66.41 × 2
= $132.82
Now the coupon rate is
= $132.82 ÷ $1,000
= 13.28%