CAN YOU PLEASE EXPLAIN THROUGH EXCEL HOW 1.2 AND 1.3 WAS FOUND? I USED PMT FOR 1.1....CANT GET THE NUMBERS FOR 1.2,1.3 THOUGH. THANK YOU!

1.1 Susan purchases a Mazda 6 for $22,000. To pay for the car, she will make monthly pay $509.14 interest rate = 5.25%. What are the monthly payments? Put the formula for the claculation $24,438.70 1.2 What is the total amount (interest and principal) that Susan will have to pay for the car? $2,438.70 1.3 How much interest will Susan pay