9 Case Study: Bethesda Mining Company Contract price + Excess Example: Year 1 sales 43,000,000 – 9,240,000 = 52,240,000 Variable Cost $31 * Total Tonage0 Example: Year 1 variable cost 0 Gross Margin Sales – Variable cost Example: Year 1 gross margin $ 52,240,000 - $ 19,220,000 = $ 33,020,000 Depreciation Equipment Price * Depreciation …