[Fyron]

The game is hard-coded to have a minimum maintenance from racial traits of 5%. Component and vehicle abilities can lower it below 5%.

Facilities do not have maintenance costs.

Settings.txt determines the base maintenance cost of your ships. The racial characteristic and the cultural modifiers modify the base maintenance cost. From this, you get the base cost of your ships per turn. Maint Redux abilities from Components, Facilities, and Vehicle Sizes lower the maintenance paid by X%.

For an example, take 2 races, one standard, the other with 110 maintenance aptitude trait. They each design and build a ship and a base, both of which cost 1000 resources.

The standard race pays 25% base maintenance. The base maintenance cost of their ship and base are each 250 resources. They pay this each turn for the ship. The base gets a built-in 50% maint redux, so he pays 250 * 0.50 = 125 resources each turn to maintain the base.

Now take race 2. Their 110 maintenance aptitude makes them have a base maintenance cost of 15%. The base maintenance for their ship and base are 150. They pay 150 resources per turn for the ship, and 150 * 0.50 = 75 resources per turn for the base.

Now, if the base had been modded to have 60% built in maintenance redux instead of 50%, race 1 would pay 250 * (1.00-0.60) = 250 * 0.40 = 100 resources per turn. Race 2 pays 150 * (1.00-0.60) = 150 * 0.40 = 60 resources per turn.