On January 1, 2021, Canseco Plumbing Fixtures purchased equipment for $46,000. Residual value at the end of an estimated 4 year service life is expected to be $18,000. The company expects the equipment to operate for 14,000 hours.

Required: a. Calculate depreciation expense for 2021 and 2022 using sum-of-the-years-digits assuming the equipment was purchased on January 1, 2021. b. Calculate depreciation expense for 2021 and 2022 using sum-of-the-years-digits assuming the equipment was purchased on March 31, 2021.