The document summarizes three different incentive pay systems:
1) The Bedaux system calculates earnings based on the number of "B's" a worker achieves compared to the standard time allowed. A worker's earnings include their hourly rate plus a bonus for B's saved.
2) Taylor's differential piece rate system pays workers above standard at 120% of the piece rate and below standard at 80% of the piece rate.
3) Merrick's multiple piece rate system provides different bonus incentives based on production levels compared to the standard: less than 83% gets the normal rate, 83-100% gets a 10% bonus, and above 100% gets a 20% bonus. Worker earnings are calculated as