I am on a crusade against commas; I eradicate them whenever possible. Not sure about the bold, though:
https://join.substack.com/p/crisis-and-hope
from 1840 to 1844, the “U.S. federal subsidy for newspapers” was “0.21 percent of GDP”—a “subsidy like that would amount to around $46 billion based on the projected 2021 GDP”
And here's another instance:
https://join.substack.com/p/crisis-and-hope
under LJI, “policymakers in Washington would provide a lump sum to every county in the nation annually based on the county’s population to pay for nonprofit journalism within that county”