4. Banyana's Financial year ends on 30th June. She maintains a provision for doubtful debts at 5% of the trade receivables at the end of the year. Banyana provided the following information: n On 1 July 2020 the balance on the provision for doubtful debts account was P900. Write up the provision for doubtful debts account for each of the years ended 30th June 2021 and June 2022. Balance the account at the end of each year