A fill-or-kill order will be A) executed immediately upon order arrival on the floor of the exchange. B) will be cancelled if not immediately executed at the stated price or better. C) will be cancelled at the end of the trading day if not executed by that time. D) in effect until cancelled by the customer who placed the order.

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: