Reply To: Multiply price with price form field?

The problem is that at the price fields calculation the price isn’t calculated to the end. After it comes the coupons and then the taxes calculation. As taxes are percentage that wouldn’t be a problem, but maybe a not percentage based coupon.

Beside of that there’s a hidden function to make them percentage by putting a % after the amount so you could set it to 100%. I haven’t tested it and I’m not sure if the forms javascript works with it, but technically it’s there.
Regards feryaz