I need help calculating the ending inventory and cost of goods sold for LIFO.

Inventory Costing Methods-Periodic Method Merritt Company uses the periodic inventory system. The following May data are for an item in Merritt's inventory: Calculate the cost of goods sold for May and ending inventory at May 31 using (a) first-in, first-out, (b) last-in, first-out, and (c) the weighted-average cost methods. Round your final answers to the nearest dollar