So my Caterer gave us a detailed bill of what we are expecting for our reception. The staff members are all listed separately and for our 100 person (est) wedding they are bringing 5 staff and a bartender. He estimated the time they will be working at 3.5 hours and each staff member gets 20/hour and the bartender gets 25/hour. If the number of people goes up, he said he would add additional staff and bartenders (at those rates). He doesn't say gratuity is included, however if we are paying this rather sizable hourly rate, do we need to add an additional % on top of this? If we were given a flat rate per person that would be one thing, but since we have a rate per person for the food and a separate rate for the service, doesn't that mean we are already compensating them for their time? I can imagine tipping extra if they do exceptionally well, but since the caterer is padding his numbers as is, I don't want to be spending a ton on tips AND salary. Thanks!