On 1 July 2021, the business purchased and had installed a computer system costing $19 030 ($17 300 + $1730 GST). It is anticipated to have a useful life of four years (25% p.a.) and the straight line depreciation method is to be used with a nil residual value. Prepare:

a the straight line depreciation worksheets to 30 June 2025 b an extract general ledger for the asset and depreciation accounts to 30 June 2023 c an extract income statement and balance sheet for the year ended 30 June 2023.