subject financial accounting ,mr mercer is the owner of maximum traders a computer shop that be trading for the past five year.maximum traders use the periodic inventory system to record its inventory.The entity is not registered VAT vendor .according to the accountig policies of the entity ,depreciation must be provided dor at 25% on motor vehicles ,using the straight line method and 20 % using the balance method ,At the end of each year ,the provison for credit losses must be adjusted to 2 % of total outansding debtors ,The pre adjustment trial balance on 29 february 2020 was extrated from the record od maximum traders .