K-1 box 19 code C for a limited partnership that has closed and given a final K-1, given partnership's adjusted basis and fair market value, how do I enter this?

A limited partnership that I bought into in 2008 has closed and issued a "final k-1".  The value of the shares was transferred into a new REIT.  There isn't much on the K-1, but I don't know the correct way to enter this last K-1.    There is info only in box L (ending account of 0), box 13 code W, and  box 19 code C.  The latter is confusing, there is a "partnership's adjusted basis" which is not too far off from my initial investment, and a "fair market value", which is much lower and is the amount invested into a REIT by the same management company.  The K-1 IRS docs talk about tracking basis - I've been using TT the entire time I've had this investment and always entered the K-1 info, did that track basis?  The actual basis is the initial investment amount.  This investment overall is a loss.  How do I enter this K-1 info into TT correctly, or at least in some simple way that won't get me into trouble even if I don't minimize any tax?