P, Q and R are three partners in a partnership firm X retirement stock, Sunday debtors and provision for bad debts stand in the books of A/c at Rs. 50,000,Rs.45000 and Rs.4500 respectively. The partners decided to revalue assets as under. Stock-in-trade to be reduced to 90%, provision for bad debts to be brought to 15% of Sundry debtors. The entry for revaluation of stock-in-trade will be ________.