The workers got paid. You said you'd do the job for $XX. Someone else took your work and sold it for $XXXX. You don't therefore deserve some cut of that sale. Y

The workers got paid. You said you'd do the job for $XX. Someone else took your work and sold it for $XXXX. You don't therefore deserve some cut of that sale. You sold your work for $XX. No one forced you into that. If you wanted a bigger cut you shouldn't have negotiated with someone to do the work for a fee. If you ask for a bigger cut of the sale you'll most likely have to give up some or most of the up front fee because otherwise you aren't taking any risk the sale won't happen.