What probability percentage is assigned to a lost customer?

Assigning a 0% probability to a lost customer reflects the concept that once a customer is classified as lost, they are no longer seen as a potential source of future sales or engagement for the business. In probability terms, the likelihood of a lost customer returning to transact with the company is effectively zero. This classification helps organizations focus their efforts on current customers or potential leads instead of investing resources into customers who have been determined to be unresponsive or unprofitable.

On the contrary, the other options imply some level of potential future interaction or value from a lost customer, which contradicts the fundamental understanding of lost customers in this context.