Quota Attainment is the percentage of quota a rep has achieved in a given period, calculated by dividing actual closed revenue by quota. It is used to calculate commissions, assess rep performance, and evaluate quota plan calibration. At the team level, the distribution of quota attainment — what percentage of reps are above 100%, between 50–100%, and below 50% — tells leadership whether the quota plan is well-calibrated or systematically over/under-set.