Problem
Write a SQL query to calculate the month-over-month retention rate of service professionals who joined Thumbtack in a specific quarter.
Practicing as: Business Analyst interview at ThumbtackHi, I'll play your Thumbtack interviewer for the Business Analyst role. Candidates describe these interviews as mixed and moderately difficult, so expect me to be professional and fair. Take your time with the question above and answer like we're in the room.
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