From FT...

"Your work group percentage reflects the proportional share of the company’s profits divided by the total company-wide eligible earnings for the plan year. The proportional share is based on your work group's wages as compared to the wages of all work groups. So, for example, if your work group percentage is 5%, your work group would receive its proportional share of 5% of the company’s profits, based on the ratio of your group’s wages to the wages of all work groups."

So each work group has it's own slice based on their earnings relative to earnings of all eligible employees. Pilots and Flight attendants have 10/20% shares above/below the 6.9% pre-tax profit margin threshold. Every other workgroup with a CBA has 5/10%. All have the same threshold of 6.9%.

Assuming this is the most current version, those are on the last page. https://contracts.justia.com/compani...ontract/87028/