When dragging population from one planet to another in the system screen, the system's total FIDSI counts up/down and changes color to show the effects.  However, this doesn't make it easy to see the exact numerical difference.


I suggest that while holding population over the new planet (but before releasing the mouse button), this display should show "+X" by each FIDSI yield to show the net change that is about to occur.


For example, you might see:


Food:  246 (+3)

Industry:  327 (-5)

Dust:  122 (+8)

Science:  208 (+0)