Assigning a discount to a SKU based upon the warehouse it is sold from

Hi,

We have just created a second virtual warehouse where we intend to track our blem SKUs. For example, I receive 10 of SKU # AB-01 and 8 are perfect but 2 have blems. I receive 8 into my main warehouse and 2 into the new blem warehouse. I would like to sell out of the blem warehouse to certain customers who understand it is a blem item but at a discount off of wholesale. 

Is there a way to assign a specific discount level, say 20% off of wholesale, to a warehouse?

Thanks for any and all help!

Cheers,

Mike