Smart discount calculator is calculate various types of discounts that we see in store. Following discounts can be calculated with a final price, total dollar savings and total percentage savings. Supported discounts:1. Simple % discount2. Buy one and get x% off on another product3. Discounts over discount. For ex: 50% + 40% off (that’s not 90% off :)4. Buy one get one free5 Buy two get one free6. Buy three get one freeMore discount types to be added soon. Smart shopping & smart calculations!!