Democratic 2016 hopeful Sen. Bernie Sanders’s tax plan would result in Americans losing an average of 12.4 percent of their after-tax income in 2017, according to a study released by the Tax Policy Center (TPC) Friday. The Vermont senator’s proposal includes historically high numbers, changing the top marginal tax rate – as capital gains is treated as income – from 36.5 percent to a whopping 64.2 percent, with the top .01 percent seeing an average tax increase of nearly $3.1 million next year. The estate tax would be increased using graduated rates – 45 percent for estates worth $3.5 million or $7 million for couples, 50 percent for those valued between $10 million and $50 million, 55 percent for those over the $50 million threshold.