GC 2nd Gear negative OEM Parts Revenue and Warranties

[JC_Denton]

Awesome, this probably also fixes the cases where there are negative revenues/expenses as a whole for companies?  I've been noticing extinction-level events starting around the early-mid 1990s and one of the peculiar symptoms is revenues and expenses both going negative; in my latest AI playtest, every single company (other than my "do nothing" company) went out of business.  I did see that warranty costs inverted to negative in the monthly financial table in the SQL database, but off the top of my head that only explains expenses going negative, revenue going negative is still a mystery to me.

I can provide saves as well if it's helpful, including one from the Base Map (at first I thought maybe I'd caused it with my new map, but it played out essentially the same way on the base map).

Please provide the saves. The fix above only applies to issues with the dependability ratings in one section of the game.

I have uploaded the save at https://ajtjp.com/software/GearCity/Down...-3-0-0.zip, and the Sites files at https://ajtjp.com/software/GearCity/Down...-3-0-0.zip .  The Company Report for the most recent year shows several companies with negative revenues/expenses, such as Acanadian.  Played with version 2.3.0.0, no mods, base cities map.