We sell some of our items either individually or by the box/carton lot.

For example:
- buy 1 x item A for $1.5
- buy a box of 10 x item A for $10

The default works fine if it is the discount for quantities over a certain number, but does not allow you to do lot quantities, as from my example above, to get the discount they need to buy in lots of 10, or the amount that is in the box.

eg. normal discount for 12 x item A would $12, however when pricing on box lots 12 x item A should be $13 (1 x $10 + (2 x $1.5)).

Any suggestions greatly appreciated.

Also posted this in commercial help with my request for disabling group discount on this same category.

Any help greatly appreciated.