First Choice sells two models of vacuums. Manufacturing costs and selling price data for the models are provided below. Unit selling price Unit variable costs Total fixed costs Expected sales volume (units) V100 $500 200 32 800 250 V200 $700 220 25 500 180 Required: Calculate the following. Provide a formula and show your workings for each. 1) Contribution margin ratio for Model V100 and V200. Round your answers to two decimal places. (3 marks) 2) The break-even point in dollars for Model V100 and V200 using the contribution margin approach. Round your answers to two decimal places. (2 marks)