In 2021. Crane Company had a break-even point of $345,000 based on a unit selling price of $6.00 and fixed costs of $86.250. In 2022 . the unit selling price and the unit variable costs did not change, but the break-even point increased to $462,000. (a) Compute the unit variable costs and the contribution margin ratio for 2021. (Round unit valiable cost to 2 decimal places, ey 2.25 and contribution margin ratio to 0 decimal places, e.g. 20x.) Unit variable cost Contribution margin ratio