Please answer all the parts.

Perowski Company uses the perpetual inventory system. The Petrowski Company has the following data )The available for the month of January: Unit Cost $100 $120 Date Jan. 1 Jan. 9 Jan. 10 Jan. 15 Jan. 18 Jan. 24 Jan. 30 Units 100 300 200 400 300 100 10 Transaction Beginning inventory Purchase Sale Purchase Sale Purchase Sale $140 $160 1. Determine the Cost of Goods Sold for January using the following methods: a. FIFO b.LIFO c. Moving-average (Round per unit costs and all other dollar amounts to two decimal places.)