Ahhhh, okay, thanks for clearing that up....I know you're not usually wrong so I was like
Thx (honestly) .
What caused this error was, that my subconscience still knew, that multipliers actually apply to this situation. See this quote from one of my guides:
Seraiel said:
You can always have only as much OF as the build you construct (edit: + "costs" ) , including multipliers , so i. e. 300 when the building costs 600 and when one has a +100% production bonus.
This was the exact situation I thought of, a University giving 300

of OF but costing 600

. This is important therefore, because having multipliers is such a common situation. My answer, that it's either a) the cost of the build or b) the

a city produces / turn was actually too simple, because the truth is, all of this needs to be calculated in
base-hammers! So if one is PHI and builds a University, that build is actually 300
base-hammers (without a Forge, without anything) . If one has a Factory in a city, that city doesn't make twice as many

, it makes the same base-hammers that get multiplied by 100% through the Factory. If a city i. e. makes 200

, via whatever means, builds a cheap unit (i. e. Spy) , it cannot take 200

into the next turn as OF. What matters is, how many
base-hammers that city creates. If those 200

were 100 base-hammers *2 through a Factory, than 100

or the cost of the building (again, in base-hammers) is the amount the city can take into the next turn. This is a little strange, because that basically means, that by having a Factory, a city loses 50% of it's ability to take

into the next turn. It's logical though, because on the next turn, the same city also gains the lost % again on the next turn. If this wouldn't be calculated in base-hammers, a Factory would actually not only give +100

but also double the amount of OF a city could take into the next turn, and that ofc. would be completely silly, because then, a city creating 200

building a Spy could take 170

into the next turn and then again those 170

would be multiplied by the Factory making the city produce 540

on the next turn, so a city would increasingly produce more and more

because the same

would get multiplied several times by the same building on consecutive turns (like i. e. compound interest) .
I hope this makes sense.