Your question is Volume Lift With Margin Decline. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You work on a consumer packaged goods pricing and promotion test. The treatment increases sales volume, but early readouts suggest margin is declining, and stakeholders are split on whether to ship. You need to decide how to interpret the result before making a launch recommendation.
What would you do if an experiment showed a lift in volume but a decline in margin? How would you define the right metrics and decision rule so you can tell whether to ship, hold, or iterate?