Suppose you buy a round lot of Altman Industries stock on 50 percent margin when it is selling at $35 a share. The broker charges a 10 percent annual interest rate and commissions are 5 percent of the total stock value on both the purchase and the sale. If at year end you receive a $1.00 per share dividend and sell the stock for $42.63, what is your rate of return on the investment?

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: