Function convertCurrency

convertCurrency(amount: number, fromRate: number, toRate: number): number
Converts an amount from one currency rate to another.
Parameters
- amount: number
  The amount to convert.
- fromRate: number
  The exchange rate of the original currency (e.g., USD).
- toRate: number
  The exchange rate of the target currency (e.g., EUR).
Returns number
The converted amount rounded to 2 decimal places.
Example
```
// Convert $10 USD to EUR, where 1 USD = 1 and 1 EUR = 0.85
const converted = convertCurrency(10, 1, 0.85);
console.log(converted); // Output: 8.5
```
Example
```
// Convert 100 GBP to JPY, where 1 GBP = 1.2 and 1 JPY = 0.0075
const yen = convertCurrency(100, 1.2, 0.0075);
console.log(yen); // Output: 0.63
```
- Defined in src/currency/utils.ts:98