please help with the DDB

Problem 8-2A (Algo) Depreciation methods LO P1 A machine costing $214,400 with a four-year life and an estimated $18,000 salvage value is installed in Luther Company's factory on January 1. The factory manager estimates the machine will produce 491000 units of product during its life. It actually produces the following units: 122,800 in Year 1,123,100 in Year 2, 121,500 in Year 3, 133,600 in Year 4. The total number of units produced by the end of Year 4 exceeds the original estimate-this difference was not predicted. Note: The machine cannot be depreciated below its estimated salvage value Required: Compute depreciation for each year (and total depreciation of all years combined) for the machine under each depreciation method. (Round your per unit depreciation to 2 decimal places. Round your answers to the nearest whole dollar.) Complete this question by entering your answers in the tabs below. Straight Line Units of Production DDB Compute depreciation for each year (and total depreciation of all years combined) for the machine under the Double- declining-balance DDB Depreciation for the Period End of Porlod Beginning of Year Perlod Book Depreciation Depreciation Accumulated Rate Value Expense Book Value Depreciation 1 % S 2 % 0 3 % 0 4 % 0 Total $ 0