Answer:
The answer is 44.84%
Explanation:
39% tax bracket takes back the advantage of the lower 15% and 25% tax rates.
The process will finish once the income that is taxable gets to $10 million.
Therefore, you can get the tax attributable to taxable income which ranges from $335,000 to $10 million by using all the rates in the above schedule or, more simply, by multiplying by 34%
208000*34% = 50000*15% + 25000*25% + 25000*34% + 108000*T%
70720 = 22250 +108000*T%
T=44.84%