How do I find the cost of goods sold and ending inventory assuming it applies the LIFO cost method of each sale.

Mojo Industries tracks the number of units purchased and sold throughout each accounting period but applies its inventory costing method at the time of each sale, as if it uses a perpetual inventory system. Assume its accounting records provided the following information at the end of the accounting period, January 31. The inventory's selling price is $11 per unit. Transactions Unit Cost Units Total Cost Inventory, January 1 $4.50 300 $1,350 Sale, January 10 (250) Purchase, January 12 5.00 375 1,375 Sale, January 17 (200) Purchase, January 26 6.00 105 630