Bitladon buys and sells at different international markets. There is a market value, which you pay when you buy your coins, and a selling price, the price you get when you sell your currencies. Between those two there is a price spread. A price spread can vary from 0% up to more than 40%, depending on the coin. The price spread can even change per minute.
As an example, let's take a look at Breakout (BRK). We do not purchase BRK for 0,06 Euro, but for 0,0000040 BTC. We now could sell the BRK for 0,0000035. When you look at the numbers, it seems like the spread isn't that much, but it is 12.5%. This is the price spread between the market value and the selling price.Apart from the spread, we charge a standard fee of 2%. This fee is already included in the price. You can earn a discount over this fee by trading. The more you trade, the higher the discount you will get. This can add up to 1,75%.