Backpay

Retaliation against organizing unions is illegal under US federal law, and complaints with the NLRB can lead to fired workers being reinstated with backpay, Bloomberg notes.

It says the offer amounts to an increase of 14.4% for the lowest-paid grades to 9.2% for the highest paid. There is an additional 1.1% on basic earnings and increased backpay. […] The increased backpay will be implemented and paid as a lump sum […].