Safety in Revenues

Hashim Corporation sells its product for $17 per unit. Its variable cost is $10 per unit, and total fixed costs are $800. Assuming next period’s estimated sales are 300, calculate the following amounts:a. Degree of operating leverageb. Margin of safety in unitsc. Margin of safety in revenues for more information on Safety in Revenues  check on this:https://en.wikipedia.org/wiki/Everytown_for_Gun_Safety