In a business deal, what is the term used when all parties involved lose money?

The correct term used when all parties involved in a business deal experience financial loss is "Loss." In this context, a loss refers to the situation where the total expenses or costs incurred by the parties exceed the revenues generated from the deal, resulting in a negative financial outcome for everyone involved.

Risk refers to the potential for loss or the variability in returns that an investment might produce; however, it does not specifically imply that all parties are currently losing money. Benefit and profit, on the other hand, indicate positive financial outcomes for either one party or all parties, which is not applicable when describing a situation where there is a financial loss for everyone. Therefore, loss is the most accurate term to describe a scenario in which all parties involved face financial setbacks.