Wiki :
"The stadium construction and maintenance is being paid by the taxpayer-funded Gwinnett County government, but the Braves will keep most of the revenue from ticket and concession stand sales. The municipal bonds used to pay for the stadium run for 30 years (until 2038), but the Braves have an option to back out of the contract after only half of that time (in 2023), if the county does not maintain the facility at an acceptable level. This would leave county taxpayers responsible for the remainder. Although this relationship between the Braves and Gwinnett County appears unbalanced, the sales tax revenue that the county will bring in from the sales at the stadium will allegedly benefit the county more than the cost of the stadium."
I know Wiki is not an authority.
I remember seeing some discussion that the revenue stream for the Gwinnett Braves was nowhere near what was projected.