Story Park competes with Water World by providing a variety of rides. Story sells tickets at $130 per person as a one-day entrance fee. Variable costs are $13 per person, and fixed costs are $760,500 per month. Compute the contribution margin per unit and the number of tickets Story Park must sell to break even. Perform a numerical proof to show that your answer is correct Begin by selecting the formula labels and then entering the amounts to compute the contribution margin per unit. Contribution margin per unit Begin by selecting the formula labels and then entering the amounts to compute the number of tickets Story must sell to break even. (Abbrevision used. CM = contribution margin. Complete all answer boxes. For items with a zero value, enter"0".) Required sales in units - )1 Perform a numerical proof that the number of tickets to breakeven you computed in the preceding step is correct. Begin by selecting the formula and then entering the amounts to compute the target profit to breakeven. (Complete all answer boxes. For items with a zero value, enter "O".) -Target profit