rake-off
noun
• a commission or share of the profits from a deal, especially one that is disreputable.
• "corrupt officials have more chance of a rake-off when expensive goods are involved"
Similar:
share,
cut,
percentage,
dividend,
commission,
portion,
part,
half,
ration,
allocation,
allotment,
measure,
apportionment,
whack,
slice of the cake,
piece of the action,