Right now, coupon discounts only allow whole numbers, which makes it hard to offer common pricing adjustments like cents-based discounts or fractional percentages. Adding decimal support would make coupons much more flexible and accurate.

What this would enable:

• Fixed-amount coupons with cents (e.g., €0.50 off, $2.99 off) instead of being limited to whole currency units

• Percentage coupons with fractional values (e.g., 1.5% off) for more precise promotions

• More realistic, everyday discount options that match how prices are typically set (especially in currencies where small amounts matter)

This would help businesses run cleaner promotions, avoid awkward rounding, and offer discounts that better fit their pricing.