can someone explain why my answers are wrong?

Cost Pool Annual Cost Annual Driver Activity Online reservations $194,000 38,800 online reservations Phone reservations 1,076,900 97,900 phone reservations Ticket mailings 624,000 124,800 mailings Courier deliveries 152,600 10,900 deliveries $2,047,500 Your answer is correct. Calculate the activity rate for each cost pool. Cost Pool Activity Rate Online reservations $ per online reservation Phone reservations " per phone reservation Ticket mailings " per mailing Courier deliveries 14 " per delivery * Your answer is incorrect. Two of Stoner's customers have the following activity levels. Customer A Customer B Ticket purchases $188,300 $186,500 Ticket cost $129,400 $138,900 Online reservations 507 Phone reservations o 596 Ticket mailings 498 119 Courier deliveries 493 Calculate the customer net profit and customer profit margin for each customer: (Round customer profit margin to 2 decimal places, eg. 15.25%.) Customer net profit Customer profit margin Customer A $ 63925 34 % Customer B $ 61653 33 %