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Playtime Park competes with Cool World by providing a variety of rides. Playtime Park sells tickets at $70 per person as a one-day entrance fee. Variable costs are $42 per person, and fixed costs are $170,800 per month. Compute Playtime Park's contribution margin ratio. Carry your computation to two decimal places. Use the contribution margin ratio approach to determine the sales revenue Playtime Park needs to break even. Begin by selecting the formula labels and then enter the amounts to compute the contribution margin ratio. (Enter your answer to the nearest percent, X%.) ratio Begin by selecting the formula and then entering the amounts to calculate the sales in dollars Playtime Park needs to break even. (Abbreviation used: CM= contribution margin. Complete all input fields. For items with a zero value, enter " 0 ")