Please find the double decline depreciation for five years. Please show the formula and steps.

prepare a depreciation schedule with the method listed on a milk machine that cost $35,000 has a five- year life or 100,000 hour life, with a residual value of $5000. the milk machine was used 35,000 hours the first year, 20,000 hours the third and 20,000 hours the fourth year and 25,00 the fifth year. find units and double decline for five years