Product prices for different groups and users

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I have a client that sell products to different wholesalers. Essentially i need to display a list of products WITH discounts depending on the user or group that logs in.

I can effectively do this using a basic discount, groups and users save x%. But that discount isn't available to be viewed until the user is at the check out.

Is there a way that i can display the price as well as the price with their discount on the product_list and product detail pages?

Thanks in advance

thronic