Please Explain each calculation thoroughly, the red blanks are what need to be calculated

Sweets & Treats GAAP Income Statement Item Amount $2,250,300 Revenues Beginning inventory, 1/1 $125,000 Purchases 2046745 112,400 Ending inventory, 12/31 Cost of goods sold 2059345 $639,055 Gross margin Sales and administration Profit before taxes $203,555 Click if you would like to Show Work for this question: Open Show Work