BpC means Brownies per Click. Also, BpS means Brownies per Second PRV stands for previous I have not tested all of the upgrades, so tell me in the comments if they don't work.
I cannot make custom counters for the BpC and BpS, because it would go over the clone limit. And I made the brownie custom counter have 299 clones , and 300 is the clone limit, so there's no way I could make custom counters for BpS and BpC
