Lindstrom Company produces two fountain pen models. Information about its products follows: Product A Product B Sales revenue $ 75,000 $ 125,000 Less: Variable costs 33,000 38,000 Contribution margin $ 42,000 $ 87,000 Total units sold 5,000 5,000 Lindstroms fixed costs total $78,500. Required: Determine Lindstroms weighted-average unit contribution margin and weighted-average contribution margin ratio. Calculate Lindstroms break-even point in units and in sales revenue. Calculate the number of units that Lindstrom must sell to earn a $150,000 profit. Calculate Lindstroms margin of safety (in units and sales dollars) and margin of safety as a percentage of sales based on the sales data provided in the table above..