FY22 Annual Budget has a breakdown of revenues and expenses: https://opendata.worcesterma.gov/documents/be84fb023e6c45c89000c7f6d281c263/explore

This is a state program that is partially funded by fees recorded at county registries of deeds. There is a pot of money used for matching funds that Worcester currently receives none of because we haven't adopted CPA. Other cities have seen a lot of benefits from the additional revenue (worth noting that CPA funds can't be used to pay for other standard city operating expenses, only new projects that fall under one of the specified categories).