I need help with the accounting formulas and answers for this questions.

Courtry Technology began the year with inventory of $299,000 and purchased $1,820,000 of goods during the year. Sales for the year are $3,887,500, and Country Technology's gross profit percentage is 60% of sales. Compute Country Technology's estimatod cost of ending inventory by using the gross profit method. First, calculate the cost of goods avallable. Then calculate the estimated cost of ending imventory