Q: What is Retail Price? Is that different than the selling price?


A: Retail price is not a factor in your selling price and is not equal to the selling price.  Retail price is the supplier's suggested retail price. It is typically the same as the current vendor_price, but when items are on sale, Retail price will be higher than the current vendor_price.  For example, 

Notice how there is a $79.99 with a line drawn through it.  That is the retail price or "list price". That is the price before the store discount or sale is applied.  Then the current price is $52.99.  That is the current supplier or vendor_price in sku grid.