P31022 Production Cost Query

Hello,

Can any one help me to understand the basic Definitions of Standard, Planned, Current, Actual & Completed Amount/Units.

Reference to below screen, what system is considering to populate this data.

I also would like to ask to know the reasons why system is showing the decimal difference in Units/Amounts, whereas I have recorded the Inventory Issue & Time Entry same as BOM/Routing Masters.

You can refer the above mentioned screenshots, where for A1 cost-There is a difference in amount.

                                                                                         for B1 cost- There is a difference in Planned Units & Current Units. Also in Standard, Planned & Current Amounts.

                                                                                         for B3 Cost- There is a difference in Standard, Planned & Current Amounts.