calcualte COGS, gross margin and ending inventory using weighted average

Wildhorse Company sellsleather saddles and equipment for horse enthusiasts. Wildhorse uses the perpetual inventory system. The following schedule relates to the company's inventory for the month of May: Calculate Wildhorse Company's cost of goods sold, gross margin, and ending inventory using weighted-average. (Round colculations for cost per unit to 2 decimal places, eg. 10.52 and final answers to 0 decimal places, eg. 61.052.) Cost of goods sold $ Grossmargin Ending inventory