How do you calculate wholesale price and retail prices?

How do I calculate wholesale price and retail price

Wholesale price is the price for an item in a big quantity plus additional costs as handling, shipping, storage, etc. for the whole package.

Retail price is the actual price of the product plus similar additional costs of above, you can imagine that is way less expensive to scan a whole pallet at once than scanning 10000 hot sauce bottles one by one, that's why retail price is higher. (you can also add the risk of damage, stolen object, due date, etc to that)