Unless the positions they leftto go to Amazon are made redundant, those will be refilled, also. You just take salary x jobs and apply tax regulations. That's the overall tax receipt effect. There are 25k additional jobs that are likely over 6 figures in salary.

The construction jobs come from building out the space and necessary infrastructure upgrades are paid positions that often are contract. They aren't permanent but they count for additional tax revenue. As is the revenue of the jobs created by the spending from the additional HQ2 positions (25k jobs requires X new lunch locations, Y new fitness trainers, etc). That is the halo effect.