Contribution Margin, Unit Amounts, Break-Even Units Information on four independent companies follows. Calculate the correct amount for each answer blank. Unless otherwise instructed, round all total dollar figures (e.g. sales, total contribution margin) to the nearest dollar, breakeven or target units to the nearest unit, and unit costs and unit contribution margins to the nearest cent. Round ratios to two decimal places then enter as a percentage. Use the minus sign to indicate an operating.