Exercise 11-19A (Algo) Margin of safety LO 11-6 Information concerning a product produced by Ender Company appears here: Sales price per unit Variable cont per unit Total annual fixed manufacturing and operating conta $ $ 166 89 $469,00 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 $231,000 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 $231,000 por unit a Contribution margin b. Break-even in units c. Sales in units RegD > Complete this question by entering your answers in the tabs below. Req Ato C Reg D Determine the margin of safety in units, sales dollars, and as a percentage. (Round "Percentage answer to 1 decimal place (le., 0.234 should be entered as 23,4).) Units Sales Percentage Margin of safety