📐Mathematical Modeling

Conversion Rate Calculation

The conversion rate is calculated using the following formula:

$$\text{Conversion Rate} = \frac{\text{Market Rate} \times (1 - \text{Transaction Fee})}{\text{Base Currency Value}}$$

Where:

Market Rate is the current market rate for the cryptocurrency being converted.

Transaction Fee represents any small fee applied by the 1FUEL service.

Real-Time Conversion

The fiat amount charged to the card is calculated as:

$$\text{Fiat Amount} = \text{Crypto Amount} \times \text{Conversion Rate}$$

This ensures that the user knows exactly how much fiat currency will be debited for their purchase, with the conversion occurring seamlessly in the background.