Function decimal_to_f64_checked 

pub fn decimal_to_f64_checked(
    value: Decimal,
    context: &'static str,
) -> Result<f64, DecimalConversionError>

Convert Decimal to f64 for calculations, returning error on failure.

Use this for Black-Scholes and other calculations that require f64. This function explicitly propagates conversion errors instead of silently defaulting to 0.0, which could cause incorrect financial calculations.

Arguments

• value - The Decimal value to convert
• context - A static string describing where this conversion occurs (for error messages)

Returns

• Ok(f64) - The converted value
• Err(DecimalConversionError) - If the conversion failed