Avarege cost from P4111 don't match with P4105

Hello! Good Morning! My name is Bruno and a have this doubt:

We have some items that the avarege cost from P4111 - Cardex doesn't match with average cost from P4105 - Acess to Item Costs. From day to night some items had a high of, say, 50 cents for no apparent reason. Has anyone ever experienced this?

Thank you,

Bruno Santos