Information concerning a product produced by Ender Company appears here: Sales price per unit Variable cost per unit Total annual fixed manufacturing and operating costs 164 79 $518,500 Required Determine the following: a. Contribution margin per unit. b. Number of units that Ender must sell to break even. c. Sales level in units that Ender must reach to earn a profit of $289,000. d. Determine the margin of safety in units, sales dollars, and as a percentage. Complete this question by entering your answers in the tabs below. Reg A to C Reg D a. Contribution margin per unit. b. Number of units that Ender must sell to break even. c. Sales level in units that Ender must reach to earn a profit of $289,000. per unit a. Contribution margin b. Break-even in units c. Sales in units Information concerning a product produced by Ender Company appears here: Sales price per unit Variable cost per unit Total annual fixed manufacturing and operating costs $ $ 164 79 $518,500 Required Determine the following: a. Contribution margin per unit b. Number of units that Ender must sell to break even. c. Sales level in units that Ender must reach to earn a profit of $289,000 d. Determine the margin of safety in units, sales dollars, and as a percentage. Complete this question by entering your answers in the tabs below. Reg A to Reg D Determine the margin of safety in units, sales dollars, and as a percentage (Round "Percentage" answer to i decimal place (1.0, 0.234 should be entered as 29.4).) Units Sales Percentage % Margin of safety