How to slove it using Excel

Sarah's T-Shirts business makes and sells tie dyed and embroidered T-Shirts. Sales information for the last year is shown below. During the year, Sarah's fixed manufacturing costs were $40,000 and fixed Selling and Administrative costs were S50,000. Tie Dyed 15,000 $12 Embroidered 8,000 $ 18 Sales units Unit price Variable manufacturing cost/unit Sales commission sales) 10% 15% Prepare an Income Statement in Contribution Margin format for Sarah's business. Calculate breakeven units and revenue for her total business. What is her margin of safety