RE Notes- Help me , How to find the following

Useing N- NUMBER OF PAYMENTS
I - INTEREST RATE
PV - Present Value
PMT- Payment Amt
FV-Future Value
PV- Discount Purchase Price = (Yield)
What does LTV % and ITV % mean
and how do (I) you find It?
Thanks
DougDamo

LTV = Loan to Value

Doug,
This link may help…
http://www.reiclub.com/real-estate-abbreviations.php