Tasty Subs acquired a delivery truck on October 1, 2021. for $17000. The company estimates a residual value of $1600 and a six-year service life. It expects to drive the truck 110,000 miles. Actual mileage was 4,100 miles in 2021 and 17,200 miles in 2022 Required: Calculate depreciation expense using the activity-based method for 2021 and 2022, assuming a December 31 year-end. (Do not round your intermediate calculations.) 2021 2022 Depreciation expense