What is the total amount of costs that change with the level of sales activity shown on the Income Income Statement Sales Variable Costs Direct Labor Direct Material Carrying Costs Inventory Total Variable Costs Gross Margin Fixed Costs (Operating Expenses) Depreciation Sales, General & Administrative (SG&A): Research & Development Promotions Sales Administrative Total Fixed Costs Net Margin Other Earnings Before Interest & Taxes (EBIT) Short Term Interest Long Term Interest Taxes Profit Sharing Net Profit (Loss) Total $40,800 $3597 O $4,543 $32.660 $0,140 O $12.138 120.240 $12,138 $20,240 $282 $32,660 $8,140 $960 $0 $1,000 $1,000 $637 $3,597 $4,543 $4,543 50 $641 $1,365 $51 $2,485 2019 Size 100.00% 29.70% 49.60% 0.70% 80.00% 20.00% 2.40% 0.00% 2.50% 2.50% 1.60% 8.80% 11.10 % 11.10 % 0.00% 1.60% 3.30% 0.10% 6.10%