With Bush tax cuts expiring in Dec 2010, by how much will short-term capital gains tax increase in 2011, if any?

In the US, short-term capital gains are taxed at the same rate as ordinary income. The current tax structure features a sliding tax rate that goes from 10% up to 35%. When the Bush tax cuts expire, the rates will run from 15% to 39.6%. So short term capital gain taxation rates will go up accordingly, depending on your total income. For top earners, which represent about 1% of filers, the tax rate will be changing from 35% to 39.6%. In theory one could call this a 13% increase in the total tax paid at the top marginal rate.