Cart discount by order quantity

[jurgita]

Hello,

 

maybe anyone have ideas about cart solution or hack based on order quantity. Let's say:

 

I have products:

 

Mainboard

CPU

Memory

 

For quantity based orders on same product I can use "Specific prices". That's OK. But if I want to use "Specific prices" based on cart quantity. For Example:

 

If I have 3 or more different products on cart and I want to have "Specific prices" to

 

Mainboard -5%

CPU -10%

Memory - 2%

 

How to solve that? 

 

Any help would be great.

[dioniz]

What about cart rules?

[jurgita]

There is a lot of products. And it is impossible to write rules in cart for all combinations, because there can be any of the products in cart. And if there is 3 or more products in cart I need use specific price. 

 

I find a part of simple rule to add all producers based on quantity 3 or more. That's looks OK. But in that case discount is based by cart rule too. And it is the same for all products. But I need for every product specific discount %, not the same. There is the problem.