Which of the following is the formula that you would use to calculate incremental revenue lift?

The correct formula for incremental revenue lift is "actual revenue - baseline revenue." Incremental revenue lift measures the additional revenue generated by a specific initiative or change compared to what would have been earned without it. "Actual revenue" is the total revenue achieved during the period of the initiative, while "baseline revenue" is the revenue that would have been expected if the initiative had not occurred. The difference between these two figures represents the incremental gain. "Revenue - transactions" is incorrect because transactions are a volume metric, not a revenue component. "Cost - actions" is incorrect as it relates to cost efficiency, not revenue generation. "Revenue - cost" calculates profit, not incremental revenue lift.