Portions are below average

Portions are below average
Prices have gone up and they still add 3% to the total bill??
When it first opened, the prices were lower and I kinda understood the 3% .. now it's just a legal scam and the waiters are going to loose from as most will top less.
We took family recently and we asked our waitress for her explanation on the 3% and even herself could not give a good reason, even citing that prices had gone up.
She did add her opinion, saying it is Infact a rip off.. just a scam to grab an extra couple of dollars.