In case you need it, here are PDFs of the latest Axis and Allies rules from the official manufacturer, including for Europe and Pacific 1940:
Factory damage
-
If a major factory has 20 points damage and gets taken over and reduced to a minor does it still retain 20 damage?
-
@nubnumber1 Nope. Since it is a minor factory, the max damage rule of 2x production is in effect, and the damage is immediately reduced to 6.