Factors that Determine Depreciation Expense a)Initial Cost $24, 000 minus b Estimated Residual Value $2,000 equals Depreciable Cost $22,000 divided by ⊙ Estimated Useful life 5 years equals c9-10C9 - 10 equals c Estimated Useful Life 5 years divided by Depreciable Cost $22,000 equals Factors that Determine Depreciation Expense b Estimated Residual Value $2,000 minus a Initial Cost $24,000