Get your taxes done using TurboTax

How do I ask a unique question for my situation in this online Q&A space? 

 

I am using Turbo Tax software and I want to understand the math behind the tax amount and please don't point me to the IRS tax table because Turbo Tax is a lot lower than if I use the IRS tax table. 

 

Can I find the math calculation line by line in Turbo Tax?