For Star Realms, what's the appropriate ratio of Wealth-per-Card-per-Faction?
Alright, so I found google docs with cards, added some more data concerning base sets and made a diagram with it. I used a sophisticated formula of counting only half of the trade from ally and scrap abilities and counting optional abilities as full trade.

Google docs data

Here are some diagrams I came up with:



This one shows generated trade by card costs, I didn't do other factions because they only have trade-generating cards up to a cost of 4 (with a single exception).

Initial source of data I used: BGG files