K ltd purchased a machine in 2013 for 50,000 that has a useful life of 5 years with a salvage value of 5,000 Calculate the depreciation expense, accumulated depreciation, book value throughout its useful life using:  

(I)- Straight-line method.

(II)- Units of Production method if the machine produces 100,000 units. 

Here is a table of units produced each year:

First year 23,000 Second year 25,000 Third year Fourth year 30,000 Fifth year 22,000