I need help with how to calculate the second half please like work shown so i can fully understand please.

Tom buys a new truck for $62500. He financed the truck for 60 months at an annual interest rate of 11.5% compounded monthly. Using this website T, what is Tom's monthly payment? \$ After paying 30 payments, Tom decided to repay the loan in full. Using the Actuarial Method and the table below, determine Tom's pay off amount with payment \#31