how I can use the units-of- production method to find this out

Required information The following information applies to the questions displayed below.J On January 1, 2018, Hobart Mfg. Co. purchased a drill press at a cost of $32,900. The drill press is expected to last 10 years and has a residual value of $5,300. During its 10-year life, the equipment is expected to produce 500,000 units of product. In 2018 and 2019, 21,500 and 77,000 units, respectively, were produced. Required: Compute depreciation for 2018 and 2019 and the book value of the drill press at December 31, 2018 and 2019, assuming the units-of- production method is used. (Round depreciation per unit to 2 decimal places.) 2018 2019 Depreciation Book Values