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If I don't calculate cash out refi percentage myself and let TT help me, do I enter the amount of loan prior to cash out on the first line ? 

For example  In the section "tell us about how you have used this loan"..

 "Since you have first took out this loan, how much has been used to buy, improve or build this home its secured by"  (loan value before cash out refi)  Then it It also shows the mortgage balance at the end of this year.  

Since I did a cashout in 2016, this number is better if I let TT calculate.  Is it because i have paid 3 years toward this Cashout.  Is that correct?  

Therefore, which scenario should i use?