Okay....
If your price control is V, then it will effect on Inventory account for material..
The the amount goes to price difference account, it means you haven't stock available in your material master-accounting 1 tab...
And also may your causes of different period for exchange rate...
But you can sure about that system is posted correct value...
System consider all possible things about the amount goes to price difference account...
You can cancel the Invoice receipt...