Wild-Water Works Water Park provides for a fun day by offering a variety of rides. Wild-Water Works Water Park sells tickets at $78 per person as a one-day entrance fee. Variable costs per person are $34 and fixed cost amount to $135,000 per month. Wild-Water Works Water Park expects to sell 6,800 tickets. Estimate the operating income if sales increase by 15%. Calculate the degree of operating leverage. (Round interim calculations to four decimal places and the final answer to the nearest dollar.) Contribution Margin / Operating Income = Decree of Operating Leverage Percent change in Sales Revenue (%) Degree of operating leverage Percent change in operating income (%) X Operating Income X Percent change in operating income (%) Dollar change in operating income