EX 16-10 Predetermined factory overhead rate Obj. 2 Spring Street Engine Shop uses job onder cost system to determine the cost of performing engine repair work. Estimated costs and expenses for the coming period are as follows: $575.CO 660000 405 Engine parts Shop direct labor Shop and par e nt depreciati Shop supervisor sales Shop property taxes Shop speles Advertising expense Administrative office salaries Administrative office depreciation expen Total costs and expenses 10.000 SUS9200 The average shop direct labor rate is $0 per hour Determine the predetermined shop overhead rate per direct lahor hour