Blossom Company sells leather saddles and equipment for horse enthusiasts. Blossom uses the periodic inventory system. The following schedule relates to the company's inventory for the month of May:

$\backslash$table$[[,,,$Cost,Sales$],[$May $1,$Beginning inventory,$120$ units,$$48,000,],[5,$Sale,$80$ units,,$$41,600$

Calculate Blossom Company's cost of goods sold, gross margin, and ending inventory using the weighted$-$Average?