Revenue is the money a business earns by selling a product or service, and profit is the money a business keeps after accounting for all the expenses involved in generating that revenue. Potential revenue is the projected income/revenue expected from the sale of all items in an inventory given a set sales price per-item. Profit is the amount of income (revenue) left over after all expenses are paid. Potential profit is not a guarentee of net profit; it is only the potential profit based on the inventory amounts.