This concept has changed greatly from Necromunda. Instead of a ganger working a territory and then the gang losing a large percentage to the upkeep chart, things have changed. There is only one source of automatic expenses; every Unit member has a flat cost of upkeep. This charge represents everything from ammo, to food, to beer money, or anything else that is ethereal. Every Unit member costs the Unit $2 credits per turn. So if the Unit has 10, members, there is a flat $20 credit upkeep charge.
Gathering money has also gone through a facelift. Instead of territories, the great houses provide the financing for the Unit. Each of the Six houses start at d6x5 credits per campaign turn. To collect a ganger must be assigned to collect the money from each house. There may be a time where not enough gangers are able to collect, therefore then the Unit must choose from whom to collect. House budget lines increase with the Unit gaining reputation with the house. There can be other times rewards from missions or the like can permanently increase a budget line.