2) Coffee Klatch is an espresso stand in a downtown office building. The average selling price of a cup of coffee is $1.49 and the average variable expense per cup is $0.36. The average fixed expense per month is $1,300. 2,100 cups are sold each month on average Required: 1. What is the break-even sales in units? 2. What is the break-even sales in dollars? 3. How many cups of coffee would have to be sold to attain target profits of $2,500 per month? 4. What is the margin of safety in units