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 $ 161 89 5432.000 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 $158,400 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. Reg A to RegD Determine the margin of safety in units, sales dolars, and as a percentage. (Round "Percentage answer to 1 decimal place Kl.e., 0.234 should be entered as 23.4).) Percentage Margin of safety Units Sales