Customers renewed early to beat the price increase. Measure its effect anyway.
Causal inferenceHardProblem. When the Business+ price rose from $12.50 to $15, existing customers moved to the new price at their next renewal. Some customers renewed early, before the change date, to lock in the old price for another year. You want to estimate the price change's effect on downgrades to Pro. How do you handle the early renewals?
Before you reveal: say your answer out loud, as if you were in the real interview — get your reasoning across clearly first. There is no single correct answer: reading what the interviewer is really after and defending your own thinking is what makes an answer strong.