Bradford T. answered 03/31/21
Retired Engineer / Upper level math instructor
Use the forumula
Payment = P(r/n)(1+r/n)nt/((1+r/n)nt-1)
For this case nt = 180, r/n = 0.035/12 and P = 220,000 - 22000 = 198000
(1+r/n)180 = 1.00292180 = 1.6892
Payment = 198000(0.00292)(1.6892)/0.6892 ≈ $1415.46