Variable expenses percentage of sales: Read the reguiroments: Requirement 1. Compute the moethly margin of safety in dolars if the shop achieves is income goal Begin by identilying the farnuls to compute the margin of sately Requirements income goal 2. Express John's margin of salety as a percentage of target salies. 3. What is John's operating leverage tactor at the target level of operating income? 4. Assume that the company reaches is target By what percentage will the company's operating income fal if sales volume decines by 12