please solve all 3 requirements

Randall's Repair Shop has a monthly target profit of $19,500. Variable costs are 75% of sales, and monthly fixed costs are $13,000. Requirements 1. Compute the monthly margin of safety in dollars if the shop achieves its income goal. 2. Express Randall's margin of safety as a percentage of target sales. 3. Why would Randall's management want to know the shop's margin of safety? Requirement 1. Compute the monthly margin of safety in dollars if the shop achieves its income goal. Select the labels and enter the amounts to compute Randall's Repair Shop's monthly margin of safety in dollars