why are my totals wrong ? especially the factory overhead rate ?

Scrumptious Snacks Inc. manufactures three types of snack foods: tortilla chips, potato chips, and pretzels. The company has budgeted the following costs for the upcoming period: Factory overhead is allocated to the three products on the basis of processing hours. The products had the following production budget and processing hours per case: If required, round all per-case answers to the nearest cent. a. Determine the single plantwide factory overhead rate. X per processing hour b. Use the overhead rate in (a) to determine the amount of total and per-case overhead allocated to each of the three products under generally accepted accounting principles