Begin by identifying the formula and calculating the adjustment to each account assuming under- or overallocated manufacturing overhead is prorated based on ending balances (before proration) in each of the three accounts. (Use a minus sign or parentheses to show overallocated amounts and adjustments to be subtracted.) Proportion (decimal) x (Over-) Underallocated OverheadAdjustment WIP FG CGS Budgeted manufacturing overhead cost Budgeted direct manufacturing labor cost Actual manufacturing overhead cost Actual direct manufacturing labor cost $ 135,000 $ 225,000 $ 128,000 220,000 1. Calculate the manufacturing overhead allocation rate 2. Compute the amount of under- or overallocated manufacturing overhead 3. Calculate the ending balances in work in process, finished goods, and cost of goods sold if under- or overallocated manufacturing overhead is as follows a. Written off to cost of goods sold b. Prorated based on ending balances (before proration) in each of the three accounts Prorated based on the overhead allocated in 2017 in the ending balances (before proration) in each of the three accounts c. 4. Which method would you choose? Justify your answer.