:confused: Is there a difference between Goods Sold and Sales?
If so, what are they?

Inventory Turnover (IT) = Goods Sold/Inventory
Asset Turnover (AT) = Sales/Asset

(Question moved from Introductions to more appropriate topic area so that it will get noticed more by the people who are best able to answer the question.)

You use selling price for each unit to get Sales, but use cost for each unit for COGS.