Base rate + accelerator after quota. Enter your quarter and see the payout math line by line.
Everything up to quota pays the base rate; everything above quota pays the accelerator. If you sold $150,000 against a $120,000 quota at 8% / 12%: $120,000 × 8% = $9,600, plus $30,000 × 12% = $3,600 → $13,200 total (8.8% effective rate, 125% attainment).