how do I adjust this pre adjustment trial balance

100 090 400 DOG OC 12 300 00 outer and electricity 10 780 12 60G 80 arrest on loan Nil 9000 00 streets and additional information 514 740 m The vehicle that cost R91 000 was bought on 1 November 205, This has already bern pecended. The equipment was bought and recorded on 1 March 20 5 vehicles must be depreciated at 15% on diminishing balance and equipment best bet depreciated at 1595 using the straight-line method : $ Manika, & debtor, returned goods that she bought for R460 As these ponds were guilty. they were then returned to the suppliers. No entries have been made to record this. A debtor, who owed RADO, paid 40% of what he owed. The rest of his account must be written off as bad. No entries have been made to record either of these entries. 4 trading stock, with a selling price of R16 000, was destroyed by a small fire in the warehouse This had not yet been recorded & The owner's telephone account (R580) was incorrectly recorded as a business expense According to a stock-take the following was on hand on 2d February 20.6. . Trading stock R50 500 . Packing material F340 & Insurance includes an annual premium of R500 for a policy taken out on 1 July 20.5. 4. Rent has been received for March 20,6. 10 Electricity of R1 100 is still due 1! An amount of R1 000 i due to be repaid on the loan from Ace Bank on 30 April 20.6