Fixed-Cost Allocation Based on Budgeted Rates and Budgeted Usage

When budgeted usage is the allocation base, regardless of the actual usage of facilities (i.e., whether Case 1, 2, or 3 occurs), user departments receive a preset lump-sum fixed-cost charge as in the dual-rate procedure discussed earlier. If rates are calculated based on budgeted usage at $40 per hour ($144,000÷3,600 hours), the Machining Department is assigned $32,000 ($40 per hour×800 hours) and the Assembly Department, $112,000 ($40 per hour × 2,800 hours). If rates are set using practical capacity at $36 per hour ($144,000÷4,000 hours), the Machining Department is charged $28,800 ($36 per hour×800 hours), the Assembly Department is allocated $100,800 ($36 per hour×2,800 hours), and the remaining $14,400 ($36 per hour×400 hours) is the unallocated cost of excess capacity.