Retirement tax questions

 

@dmertz 

I apologize, but your last comment has left me confus

There's a distinction between taxable and non-taxable amounts, right? Initially, the contributions were after tax, and $100 is being added to the Roth IRA after taxes as I paid taxes on them. So, is it correct that the Roth IRA receives $1,100 as the base amount without distinguishing between the two parts? Can I withdraw the entire $1,100 anytime I want to take out my contribution?