Starting at 100% i have 82 clients 2 of them didn't get a check up what percent does that leave us at ?

82 total clients

2 did NOT get a checkup

(82 - 2) = 80 clients DID get a checkup

80/82 = 0.97561 = 97.561% of your clients have had their checkup.

Interestingly, that's the exact same percentage of your clients who have had lunch.  Perhaps ... I'm not stating this as a fact, but it's a hunch ... just maybe the other two have not had their checkups yet because they are out getting lunch.

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.