E6-11 (L04) (Evaluation of Purchase Options) Sosa Excavating Inc. is purchasing a bulldozer. The equipment has a price of $100,000. The manufacturer has offered a payment plan that would allow Sosa to make 10 equal annual payments of $16,274.53, with the first payment due one year after the purchase.
Instructions

(a) How much total interest will Sosa pay on this payment plan?

(b) Sosa could borrow $100,000 from its bank to finance the purchase at an annual rate of 9%. Should Sosa borrow from the bank or use the manufacturer’s payment plan to pay for the equipment?