With some demographics, no math is necessary...they simply never leave a tip anyway.
They did talk about the 2%. Yet I thin it’s closer to 10% that tip noyhing and another 10% that tip horribly. I know black servers who prefer not to wait on black tables. It’s especially black women who tip horrendously poorly.
I think tipping / tip jars have become overly stupid to the point of begging. When it’s at the gas station wher 905bdo pay at the pimp. What am I tipping for. ^.