August $1$ Beginning inventory $80$ units of Product A @ $$1,800$ total cost $5$ Purchased $100$ units of Product A @ $$2,400$ total cost $8$ Purchased $200$ units of Product A @ $$4,420$ total cost $11$ Sold $150$ units of Product A

Calculate the August cost of goods sold and the ending inventory at August $31$ using $($a$)$ first$-$in$,$ first$-$out, $($b$)$ last$-$in$,$ first$-$out, and $($c$)$ the weighted$-$average cost methods.

Do not round until your final answers. Round your final answers to the nearest dollar.