find the ending balance of year 15, 16, 20

Create an amortization schedules using the following assumptions: $7,200 $112,800 Term - 30 Year ARM Purchaes Price Down Payment Loan Amount Interest Rate Balance @ Beginning of the Year 360 $120,000 6% ????? 11% Year 15 0.009166667 1074.22 2% 15% Year 16 0.0125 Year 20 0.001666667 initial monthly payment year beginning balance interest rate monthly payment monthly interest amortization ending balance