How do you define what it "actually" is?
The 10,15,20% is still what I hear. Perhaps it differs based off where you live in the US? I've lived in CA (both northern and southern) and the norm is generally accepted to be 15%.
The 10,15,20% is still what I hear. Perhaps it differs based off where you live in the US? I've lived in CA (both northern and southern) and the norm is generally accepted to be 15%.