Betting&Trading Calculator is the newest app by Braingapps, that allows you calculate fast and easily your bets and profits, and how to close a trading.
But, ¿what's a trading?
Trading is a betting technique, available only in exchange houses, which you can bet for and against a live event. It comes to take fees movements before or during the event to bet for and against, and stay with the margin as profit. There are 2 ways: Back-Lay // Lay-Back.
Video: How to make a trading 