#6452
Soft79
Keymaster

This is the way it works:

Internally the matching products are ordered expensive to cheap, then every 3rd item will be discounted. Those will not neccesarily be the cheapest items, but the cheapest item in every selection of 3 products.

e.g. when the cart contains these six items:

$ 150
$ 140
$ 130
$ 120
$ 110
$ 100

then the $ 130 and $ 100 item will be discounted.