I gave $138 for JP, then $28 (just a token) to all wedding vendors including MUA and her assistant, wait staff, planners, band etc. For family members who helped, I gave a bit more. For emcees, since they are our friends, we gave the same as we would give to our bridesmaids and bestmen.
Most important advice I have been given, always and I mean ALWAYS prepare extra ang baos roughly in the average amount of what you are going to give out. I prepped like extra 15 Ang Baos and I gave them all away when family members or friends stepped in and help on that day.