Need help writing the correct formula to get periodic payment. Should get the same answer as shown below.

Calculating the periodic payment: The periodic payment is the total amount of principal and interest that is paid on the loan for each period. The periodic payment is the same for every period for the life of the loan. Use the PMT function to calculate the periodic payment for the auto loan. The principal of the loan (present value) is the purchase price minus the down payment plus the sales tax - the tax is added to the loan for an auto loan. Hint - the interest rate used in this function is the periodic interest rate, this is the yearly interest rate divided by the number of periods. Your worksheet should have the values in the figure below