Check your worksheet setup and formulas by changing the Original Cost to $$100,000,$ the Estimated Residual Value to $$25,000,$ the Estimated Useful Years to $8,$ and the Estimated Units to $15,000.$

You should now have a Year $3$ journal entry for Depreciation Expense in the amount of $$9,375$ for the Straight$-$line method, $$14,063$ for the Double$-$Declining$-$Balance Method, and $$11,000$ for the Activity$-$Based method. $($Note$,$ the asset will not fully depreciate under the Activity$-$based and SL methods when testing the changes.$)$

If you do not get this answer, review your worksheet and the formulas you used.