The short answer
Build profit by product and customer from the ledger, including delivery, rebates and service costs. The customers and products that lose money are usually obvious once the numbers exist. Then rebuild the price list.
Start with the ledger
Revenue by customer is easy. Profit by customer needs delivery, rebates, payment terms and service time allocated properly. That is where most of the work is.
Find the losses
In most reviews a share of customers lose money once every cost is counted. Some can be repriced, some served differently, and a few should go.
The price list comes last
Change prices once you know cost to serve, and track the result monthly so the board sees it hold.
Sources and review
Sources: Ordway pricing reviews completed from 2020 to 2026, and client management accounts before and after each review. Reviewed by Tom Whitcombe on 18 June 2026. Next review December 2026. This article is general information, not advice on your situation.