I am trying to create a custom field which shows lumens (brightness)/£($) it is a sort of value for money calculation. So for example a customer might be able to chose between a 260 lumen bulb costing $4.00 as against a 300 lumen bulb costing $6. In this case the first bulb give 65lumes/$ and the second gives 50lumens/$. So the first bulb is cheaper and more economical but not as bright.

If I create a custom item field I can make it a dynamic field using calculation and I can pick up the lumen field. What I cannot seem to see is how to pick up the customers price (Different customers have different discounts). What is the Netsuite reference for customer price?