7. Prohoff Company uses activity-based costing to compute product costs for external reports. The company has three activity cost pools and applies overhead using predetermined overhead rates for each activity cost pool. Estimated costs and activities for the current year are presented below for the three activity cost pools: Activity A Activity B Activity C Estimated Overhead Cost $117,312 $120,096 $260,648 Expected Activity 2,400 4,800 4,400 Actual costs and activities for the current year were as follows: Actual Overhead Cost $116,952 $119,596 $260,468 Activity A Activity B Activity C Actual Activity 2,370 4,830 4,450 The total debits to the Manufacturing Overhead account during the year were closest to: a. $488,056 b. $497,016 c. $500,668 d. $502,220 8. Siva Company uses activity-based costing to compute product costs for external reports. The company has three activity cost pools and applies overhead using predetermined overhead rates for each activity cost pool. Estimated costs and activities for the current year are presented below for the three activity cost pools. Estimated Overhead Cost $ 58,656 $ 60,048 $130,324 Activity 1 Activity 2 Activity 3 Expected Activity 2,400 4.800 4,400 Actual costs and activities for the current year were as follows: Actual Overhead Cost Activity 1 Activity 2 Activity 3 $ 58,476 1$ 59,798 $130,234 Actual Activity 2,370 4,830 4.450 The total amount of the credits to the Manufacturing Overhead account during the year was closest to: a. $248,508 b. $248,988 c. $250,155 d. $251,334