Lilydale Ltd purchased new equipment on 1 January 2016, at a cost of $200,000. The company estimated that the equipment has a residual value of $20,000. The equipment is expected to be used for 5 years. Assuming the financial year ends on 31st Dec, calculate the depreciation expense using sum-of-years digit methods for years ended 2016 to 2019. Please show the calculation of the sum-of-years digit and depreciable amount. Note: The depreciation table is not required