I have been working on this problem all day and can't find anywhere to have this figured out.

I have this given to me:

Sales Revenue = 900
Beginning inventory = 180
Purchases = 800

I have to find:

Total available
Ending inventory
Gross profit
Cost of goods sold

I know I'm forgetting something but the book and internet isn't telling me anything but formulas that all hinge on knowing the CoGS

Thanks in advance

Total Available = beginning Inventory + Purchases

Ending Inventory = Total available - Cost of Goods sold

Gross Profit = Sales - Gost of Goods sold.

From your problem you are missing some information like the number of units sold and cost per unit.