MAP issue in MM

Hi All,

I have a problem in MAP (moving average price) in one of the material.Material shows MAP as 1.80 and the latest receipts shows as 2.07.

I have looked in to MB51 and I could not find any way how MAp in MM is showing as 1.80 and also there is no change log for this like MR21 or so.

pls help me on this