Pricing issue-Amount in LC difference

HI All

   I have a pricing issue. I issued the material to cost center wiht 201 movement type.In two of my FI  document , two documents are having same material code and same quantity, but with 0.01 USD different amount in LC. The price control that I maintian in the material master is standrad price and the same currency in material master with the accounting document .So kindly let me know the logic how SAP is doing the calculation in the standard for this.

Here goes the example

Thanks