The following information relates to Pronghorn Back Falls Ltd$.\text{'}$s inventory transactions during the month of February.

All of the units sold were priced at $$87\mathrm{.}00$ per unit.

Pronghorn Back Falls Ltd$.$ uses the perpetual inventory system.

Calculate Pronghorn Back's cost of goods sold, gross margin, and ending inventory for the month of febuary using weighted$-$average $($Round calculations for cost per unit to $2$ decibal places, eg $10\mathrm{.}52$ and final answer to $0$ decibal places eg $61,052)$