Im sure someone developed and addon to give quantity discounts INCLUDING cost of option
EG, 10+ rate of item each = 1.00
Options added to option = + 1.00
discount is 20% so price including option should be £1.60 (-20% form total including option)
But price calculated by cart is only - 20% from actual product so total = £1.80
Does anyone know where the addon is Ive search marketplace V4.52
Thanks
john