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 depreciation $26,550
Indirect labor 65,797
Factory electricity 7,503
Indirect materials 15,584
Selling expenses 36,939
Administrative expenses 20,778
Total costs $173,151
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:

Budgeted Volume
(Cases) Processing Hours
Per Case
Tortilla chips 4,800 0.10
Potato chips 4,200 0.12
Pretzels 5,100 0.15
Total 14,100
a. Determine the single plantwide factory overhead rate.