Also, this doc from Fidelity explains the % multiplication on first page so you have something official on it
https://www.fidelity.com/bin-public/060_www_fidelity_com/documents/taxes/TY24GSESupplementalLetter.p...
Btw for 2025 planning I think the fund you're referring to is SPAXX which is the Fidelity default for cash management, if you have a lot in that position and looking to optimize state exemption on the US Gov component, consider using a different fund like FDLXX which is 97% US Gov. But you have to make explicit buys and sells in and out of that fund, whereas your cash position in SPAXX is automatic.
