ANotEM 9-19 More Than One Cost Driver LO9-2, LO9-3 Miano Piza is a small neighborhood pizzeria that has a small area for in-store dining as well as offering uleout and free home delivery services. The pizeria's ownec has determined that the shop has two major cot drivers - the number of pizzas sold and the number of deliveries made. The pizzeria's cost formulas appear below: In November, the pizzeria budgeich for 1,200 pizzas at an average selling price of $13.50 per pizza ad fot 180 deliveries. Data concerning the pizzeria's actual results in November appear below: Required: 1. Compute the revenue and spending variances for the pizzeria for November. (Hint: Refer to Exhibit 9-6.) 2. Explain the revenue and spending variances