Heck...they're all just handwaving numbers.
Use whatever calculation procedure you want, and don't depend on whatever procedure TTX is using.
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For my own purposes, so I know exactly which handwaving value I'm looking at.
1) I tend to use line 22 divided by AGI (line 11)
For those who have Self employment income, if they really want to get annoyed;
2) They can ALSO use line 24 divided by AGI (line 11)
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____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
