Graft/Bottle Calves

I lost two calves and acquired two graft calves. The guy I got them from said I could pay him now or when the calves sell. He said just whatever the market price would be. My question is what would the market price be for a graft calf? they were 80-120 lbs roughly.  Or where could I find that information. I tried looking at my local livestock auctions but they don't run things through that small.

Thanks

Around here, those calves are worth 300-500 depending on type and kind.

I sold a 12 hour old calf last Friday and he brought $385.00 / Angus sired AI bull calf, black.