ui Imaginationtime Park competes with Fun World by providing a variety of rides. Imaginationtime sells tickets at $100 per person as a one-day entrance fee. Variable costs are $20 per person, and fixed costs are $480,000 per month. Compute the contribution margin per unit and the number of tickets Imaginationtime 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. $ Net sales revenue per unit 100 Variable costs per unit 20 Contribution margin per unit 80 Begin by selecting the formula labels and then entering the amounts to compute the number of tickets Imaginationtime 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