In order to facilitate transactions between different currencies and convert amounts into different currencies, exchange rate data is required.
These exchange rates are constantly updated using a variety of sources. Whenever possible, exchange rates of external providers, who conduct the actual exchange between the currencies, are used. For cryptocurrency to FIAT rates, we rely on the provided exchange rates of our exchange partners.
If no direct provider to calculate exchange rates is available, prices are prompted from public APIs. Since cryptocurrency prices differ greatly from provider / exchange to provider, a weighted average of all the available exchange rates is calculated if necessary.
Since exchange rates between cryptocurrencies as well as FIAT to cryptocurrency exchange rates are subject to strong fluctuations, low safety margins are often incorporated into the used exchange rates. Likewise, the market value changes with an increased transaction amount (market depth). Larger amounts lead to slightly worse exchange rates, though this should only be noticeable for very large amounts.
All this simply means that the quotes offered are always (slightly) worse than the ideal ones (e.g. from websites like coinmarketcap.com).
Since Salamantex receives its exchange rates from external providers, only very little influence on the exchange rates, and the safety margins contained therein, can be taken.
Despite careful control of the exchange rates received, Salamantex can not guarantee full accuracy. Exchange rates should always be reviewed by the licensee and the buyer, prior to confirming the transaction.