Amachine originally had an estimated useful life of 5 years, but after 3 complete years, it was decided that the original estimate of useful life should have been 10 years. at that point the remaining cost to be depreciated should be allocated over the remaining: 2 years. 5 years. 7 years. 8 years. 10 years.

Aaron corporation, which has only one product, has provided the following data concerning its most recent month of operations: selling price $ 102 units in beginning inventory 0 units produced 4,900 units sold 4,260 units in ending inventory 640 variable costs per unit: direct materials $ 20 direct labor $ 41 variable manufacturing overhead $ 5 variable selling and administrative expense $ 4 fixed costs: fixed manufacturing overhead $ 64,200 fixed selling and administrative expense $ 2,900 the total contribution margin for the month under variable costing is: