This is the continuation of 1 & 2nd question posted few minutes ago.

Straight-line Units-of-production Double-declining balance Sales COGS Gross Profit 100,000 75,000 25,000 100,000 75,000 25,000 100,000 75,000 25,000 15,000 15,000 15,000 Expenses Depreciation Expense Total Expenses Net Income 15,000 10,000 15.000 10,000 15,000 10,000 Straight-line Units-of-production Double-declining balance Sales COGS Gross Profit 100,000 75,000 25,000 100,000 75,000 25,000 100,000 75,000 25,000 15,000 15,000 15,000 Expenses Depreciation Expense Total Expenses Net Income 15,000 10,000 15.000 10,000 15,000 10,000