Egan & Sons is a UK-based interior fixtures manufacturer that has had a 63-year relationship with customer Westmid Builders. However, Westmid's sales have recently resulted in a 40% loss for Egan. Using activity-based costing, Egan discovered that its most profitable 1% of customers generated all profits, while its least profitable 1%, including Westmid, caused accumulated losses equaling 40% of profits. While dropping Westmid would be an option, the document recommends that Egan first focus on cost savings and profitable products, and try to restore Westmid to a profitable relationship as dropping the long-time customer should be a last resort.