I can’t understand the statistics for Folding@Home. If there are X million PCs donating Y% of their time to the project, and they cost $Z each, I was wondering

I can’t understand the statistics for Folding@Home. If there are X million PCs donating Y% of their time to the project, and they cost $Z each, I was wondering what XYZ was. That is to say, if discovering protein structures is a critical problem needed to solve Covid19, how much would it cost to just replace this distributed computation with some dedicated machinery?