[Suicide Junkie]

There are a couple of categories, and it adds within them before multiplying the categories together.

Racial modifiers add with the base amount (stock 25%), for example.

That multiplies with the ability amount on ships.


A typical mod trick is to set the base amount to 100%, so that +5% to maintenance reduction means 5% less maintenance, not 20% less maintenace.

Then all the hulls are given a -75% maintenance, so that you get the same maintenance as stock without racial tweaks (25%). +5 maint redux then results in 23.75% maintenance on your ships.