It takes some time to process transactions. And due to the high volatility of cryptocurrency, speed is crucial; however, the final exchange rate can differ both in the positive and negative direction.
If the rate goes up in the process of an exchange, you get more.
If the rate goes down in the process of an exchange, you get less.
However, this only happens if the exchange mode is FLOATING.
If you use the FIXED exchange mode, you will get the exact rate at which you initiated the exchange.
Regardless, Breet guarantees the best rate at the moment of an exchange.