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tes Information concerning a product produced by Ender Company appears here: $ 163 Sales price per unit Variable cost per unit $ 75 Total annual fixed manufacturing and operating $598,400 costs 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 $202,400. 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. Req A to C Req 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 $202,400. a. Contribution margin per unit b. Break-even in units c. Sales in units Complete this question by entering your answers in the tabs below. Req A to C Req D Determine the margin of safety in units, sales dollars, and as a percentage. (Round "Percentage" answer to 1 decimal place (i.e.. 0.234 should be entered as 23.4).) Units Sales Percentage Margin of safety Reg D >