COMODTYP.IFF
Location: PRIV.TRE
Location II: \DATA\OPTIONS\COMODTYP.IFF

References: 38KB PNG image showing example commodities and how the system is formatted.

Description: Contains the cost/availability values for commodities, which is done under the following system:

You have a BASE COST and BASE AVAILABILITY.

Then you have nine MODIFIERS, one for each type of location.

(New Constantinople, New Detroit, Oxford, Perry, Mining, Refinery, Agricultural, Pleasure, and Pirate)
The formula used to calculate the other end of the cost/availability band is:

OTHER END = (BASE - MODIFIER) + 1

If you have the following setup for slaves:

BASE AVAILABILITY: 50
MODIFIER = 60

You would have between 50 and 111 slaves available at that type of base.

SPECIAL NOTE: If the Modifier for that location is -1, that commodity is not for sale (availability) or cannot be sold there (cost).

SPECIAL NOTE II: You can use negative modifiers to change values as well.