https://defillama.com/protocol/yield-basis

1. distributor for VeYB: 0xD11b416573EbC59b6B2387DA0D2c0D1b3b1F7A90
2. plain LT holders (unstaked market deposits) earnings: LT.pricePerShare growth essentially. tvl*(ppsNow - ppsPast)/(ppsPast). ppsPast can be 1h ago.

so part of the fees come as admin fees and get collected into distributor for veyb
the other part goes into market/LT pricePerShare, easiest to calculate is how i mentioned at 2.