How can one ensure accurate calculations when dealing with percentage values in PHP, especially in financial calculations?

When dealing with percentage values in PHP, especially in financial calculations, it is important to use the appropriate functions to ensure accurate results. One common issue is the precision of floating-point numbers in PHP, which can lead to rounding errors. To avoid this, you can use the `number_format()` function to set the desired precision for your calculations.

// Set the precision for calculations involving percentage values
$precision = 2;

// Calculate a percentage value with the desired precision
$value = 100; // Example value
$percentage = 10; // Example percentage
$result = number_format(($value * $percentage / 100), $precision);

echo $result; // Output: 10.00