I'd like to set up a price promotion that reduces the shipping cost by 50% on specific (categorised) products, once cart quantity increases past 1.
- So for 1 item, shipping is 9.95.
- For 2 items, shipping is 50% off for the second item, 9.95+(9.95/2)= 14.93
- For 3 items, shipping is 50% off for the second and third items, 9.95+((9.95/2)+(9.95/2)= 19.90
I can't find a way to manage this in Magento.