Retirement tax questions

hi @dmertz thank you for your fast reply

 

i think the part im confused about is what is the difference between return of contribution and regular distribution? If in the end I'm still taking out the whole thing out of my account leaving only $137.82? Is it a difference of ways on how the money is  being taking it out?Atm what im doing to take the money out is just selling the funds and clicking
Federal tax withhold: do not withhold
State tax withhold: do not withhold
Tax withhold: do not send

Then clicking transfer to my bank account


I apologize for me not being able to understand this correctly.