A printer machine costs P$100,000.$ It is estimated that it will have a useful life of $10$ years, salvage value of P$5,000,$ production of P$500,000$ copies and working hours of P$120,000.$ The company uses the machine for $15,000$ hours on the first year and $20,000$ hours on the second year. Also, the machine produces $40,000$ copies on the first year and $25,000$ copies on the second year.a$.$ Determine depreciation after two years using the Working Hours Method. $(5$ pts$)$b$.$ Determine depreciation after two years using the Service$-$Output Method. $(5$ pts$)$