I need help with this question please, I feel as if I am doing something wrong

A machine that cost $469,000, with a four-year life and an estimated $46,000 residual value, was Installed In Haley Company's factory on September 1, 2020. The factory manager estimated that the machine would produce 470,000 units of product during its life. It actually produced the following units: 2020, 20,900; 2021, 128,400, 2022, 115,400, 2023, 108,200, and 2024, 102100. The company's year-end Is December 31. Required: Show the depreciation for each year and the total depreciation for the machine under each depreciation method calculated to the nearest whole month. (Do not round Intermediate calculations. Round the final answers to the nearest whole dollar.) Year Straight-line Units-of- Double-Declining production Balance 2020 S 363,250 2021 257.500 2022 151,750 2023 46,000 2024 Totals S 818,500 $ O $ O