We're going to have to have a vote on how to handle this part. The number of tournaments is different per format. For example wild GF would have exactly 2x the rewards per tournament as modern GF but with half as many tournaments. Here's a rough draft of what I'm thinking (it's broken down for 4 weeks instead of 2 since rewards are calculated monthly):
RE: SPS Governance Proposal - Update Tournament Formatting and Reward Allocations