Check my work Security Technology Incorporated (STI) is a manufacturer of an electronic control system used in the manufacture of certain special duty auto transmissions used primarily for police and military applications. The part sells for $49 per unit and ST had sales of 25,000 units in the current year, 2021. STi had no inventory on hand at the beginning of 2021 and is projecting sales of 29,000 units in 2022 STlis planning the same production level for 2022 as in 2021, 27000 units. The variable manufacturing costs for STI ore $20, and the variable selling costs are only 50 40 per unit. The fixed manufacturing costs are $243,000 per year, and the foed selling costs are S700 per year Required: 1. Prepare an income statement for each year using full costing 2. Prepare an income statement for each year using variable costing 3. Prepare a reconciliation of the difference each year in the operating income resulting from the full and variable costing methods Complete this question by entering your answers in the tabs below. Required 1 Required Required 3 Prepare an income statement for each year using full costing (Round your final answers to nearest whole dollar amount.) SECURITY TECHNOLOGY INCORPORATED Full Conting Income Statement 2021 2022 Less Cost of goods sold Available for sale Cost of goods sold Gross margin Required 1 Required 2 Required 3 47 Prepare an income statement for each year using full costing. (Round your final answers to nearest whole dollar SECURITY TECHNOLOGY INCORPORATED Full Costing Income Statement 2021 2022 Less: Cost of goods sold nces Available for sale Cost of goods sold Gross margin Less: Selling and administrative costs Operating income Rur Required 2 > Prepare an income statement for each year using variable costing. (Round your final answers to nearest whole dolla SECURITY TECHNOLOGY INCORPORATED Variable Costing Income Statement 2021 20 2022 Less: Cost of goods sold Available for sale Ences Cost of goods sold Contribution margin Less Selling and administrative costs Operating income Complete this question by entering your answers in the tabs below. ook Required 1 Print Required 2 Required 3 erences Prepare a reconciliation of the difference each year in the operating income resulting from the full and variable costing methods. (Negative amounts should be indicated by a minus sign. Do not round intermediate calculations. Round your "Fixed overhead rate" answers to 2 decimal places, and other final answers to nearest whole dollar amount.) SECURITY TECHNOLOGY INCORPORATED Reconciling Difference in Operating Income Between Full and Variable Costing 2021 2022 Change in inventory in units Multiply times foxed overhead rate Difference in operating income