Tasty Subs acquired a delivery truck on September 1, 2015, for $22,000. The company estimates a residual value of $2,000 and a five-year service life. It expects to drive the truck 100,000 miles. Actual mileage was 6,000 miles in 2015 and 22,000 miles in 2016.
Calculate depreciation expense using the activity-based method for 2015 and 2016, assuming a December 31 year-end.