Right; sorry I'm not used to about the forum, so I learn in the same time I built my DB...
Forms I'm trying to get something userfriendly is
V1_ActualOverview
He is related with the V54_QRYActualOverview and the table it concern is V_Actual
So the thing is I need to keep an historic of my actual and for the current period to update if we have new Headcounts , ilnesses or leaving and calculate a new actual. Then I'll stored when I close the period the V_Avtual table int V_Actual History table