Shelhorse Corporation produces and sells a single product. Data concerning that product appear below: er Uni $ 180 72 $ 108 Percent of Sales 100 % 40% 60% Selling price Contribution margin Fixed expenses are $347,000 per month. The company is currently selling 4200 units per month. Calculate the Following Contribution Margin Ratio: Break Even point in Sales Dollars (rounded to the $ whole dollar) Margin of Safety in Units (nearest whole units) Units