21. The Perrys contributions calculate to 0 . 4 percent of their post-tax income . 22. This portfolio would earn an after-tax income of $ 1.2 million a year. 23. However, the summer residents led to decreased tax incomes for economically troubled city. 24. A quarter-acre plot can yield after-tax income of $ 50, 000. 25. Tax income could be raised by dealing out wilderness areas for permanent population.26. As a result, after-tax incomes would grow by one-third over the next decade. 27. Enhancing government raised the crown's tax income by tens of percents. 28. The amount represents 3 . 4 percent of the average household's after-tax income . 29. The Perrys contributions calculate to 0.4 percent of their post-tax income . 30. The state of California has supported the renewal, expecting tax income from sustained jobs.