Pleqase show work and explanations. Thank you!

Given the following and Using the Gross Profit Method, fill in the missing numbers. Show all calculations Full Year, Last Yr, 1st 6 Mos, this yr 1 Sales Revenue Cost of G.S.- 1,352,500 824,100 Beginning Inventory Purchases Cost of Inventory Available for Sale Less cost of endinginventory Cost of Goods Sold 172,411 872,400 1,044,81.1 244, 801 725,000 800,010 2 Gross Margin 4 Oper. Expenses 6 Oper. Income/Loss 552, 490 463,111 275,000 89,379