French to English Bus/Financial Finance (general)

Context: A client cancelled a major contract with a company. As a result, that company has suffered several losses and will continue to do so until the end of its corporate term. In order to calculate these losses, the expert is working out the actual income that the company will generate over that period, and the income that it would have generated, had the contract not been cancelled.

The expert uses the terms "perte d'exploitation" and "prejudice d'exploitation" and I am not sure how to make the distinction in English. I am currently using "operating losses" for the latter.

Les REX réels permettent d'apprécier la perte d'exploitation supportée annuellement par ABC du fait de l'absence d'exploitation du contrat
La différence entre le REX réel et le REX contrefactuel de chaque année représentera, le cas échéant, le préjudice d'exploitation subi par ABC.

Thanks.