Cullumber uses the units-of-production method to calculate depreciation on its taxicabs. Each cab is expected to be driven 293,500 km over its life. Taxi 10 was purchased on March 1, 2017, for $29,840 and is expected to have a residual value of $490. Taxi 10 was driven 126,190 km in 2017 and 101,730 km in 2018. Cullumber has a December 31 year end. Calculate the depreciation expense on Taxi 10 for 2017 and 2018. Year Depreciation expense 2017 $ 2018 $