Company A had the following items under its Tools account at the beginning of 2020: UNITS UNIT COST 1700 500 1500 600 On July 1, the company acquired 600 units at P650 per unit. On August 30, it retired 750 old units and was able to sell them for P310 per unit. The company's tools inventory had a total appraised value at the end of the year of P1,836,000. Determine depreciation expense to be recognized for tools in 2020 under the inventory method