company uses the perpetual inventory system. year - January 2020

January (all purchases made on account) 1 Purchase of 100 units at $14 each 10 Purchase of 200 units at $15 each 20 Purchase of 300 units at $16 each And made the following sales $30 per unit (all on account) January 15 sold 200 units 28 sold 150 units In addition to this you are given the following information to do specific identification costing method January 15 sold 28 sold 75 units from the January 1" purchase 125 units from the January 10"" purchase 20 units from January 1 purchase 70 units from January 10 purchase 60 units from January 20 purchase Required fill out the perpetual inventory cost cards for FIFO, Weighted Average and Specific Identification