Yale Company manufactures hair brushes that sell at wholesale for $3 per unit. The company had no beginning inventory in the prior year. These data summarize the current and prior year operations: Prior Year 1,800 units 2,000 units Current Year 2,200 units 2,000 units Sales Production Production cost Factory-variable (per unit) -fixed Marketing-variable Administrative-fixed $ 0.60 $1,000 $ 0.40 $ 500 $ 0.60 $1,000 $ 0.40 $ 500 Required: 1. Prepare an income statement for each year based on full costing. 2. Prepare an income statement for each year based on variable costing. 3. Prepare a reconciliation of the difference each year in the operating income resulting from using the full costing method and variable costing method