Answer: 2.72%
Explanation:
An annuity is a series of payments that is made at equal intervals. Examples are monthly home mortgage payments, regular deposits to a savings account, pension payments.
Number of payment period (NPER) = 12 years
Payment per period (PMT) = $15000
Amount needed, PV = $156000
The formula for an annuity is calculated as:
P = PMT x ((1 – (1 / (1 + r) ^ -n)) / r)
= Rate(12,15000,-156000,1)
Rate = 2.72%