please help, its due tonight and im stuck.

Exercise 9-15 (Algo) Retail inventory method; LIFO [LO9-3] Crosby Company owns a chain of hardware stores throughout the state. The company uses a periodic inventory system and the retail Inventory method to estimate ending inventory and cost of goods sold. The following data are available: Required: Complete the table below to estimate the LIFO cost of ending inventory and cost of goods sold using the information provided. Assume stable retail prices during the period. Note: Round ratio calculation to 2 decimal places (L.e., 0.1234 should be entered as 12.34%.). Enter amounts to be deducted with a minus sign