my taxable income is $8,054 ($22,654 - $14,600), why it's 12% tax rate, it is under $11,600. should only subjected 10% and pay $806 instead of $966. Please help.

$22,654 is income, and $14,600 is standard deduction. so total taxable income only $8,054 should fall to the 10% tax bracket instead of 12%. but turbo Tax calculated it is 12%. WHY?