Can i find the details of the 1040 tax amount calculation somewhere? my generated return doesn't match the amount per the irs tax table. taxable income of line 15is ok

tax on my return printed for $2293.   but when i use the tax table and look up my taxable income,  i see a tax amount of $2305.   pretty close but i'm curious why different.  is there a detail schedule available that shows  why they would be different?    i'm guessing it's a qualified dividends related issue, but i'd like to verify that.