Obligatory country mac needs in here , RIP . <| sep |> Yay . Thank you . <| sep |> The normalexpected tip is 18 % as far as I ' ve ever heard , but since I don ' t math well I round up to 20 % most of the time . Others will calculate 15 % because it ' s also easier than 18 %.<| sep |> If we have to lose the division , I want the Lions to win . <| sep |> This is so old but it still holds up <| sep |> Panic is an understatement <| sep |> There are so many variables to this you can ' t possibly believe 100 % that private schools are the culprit . Look at the south Korea example . It ' s a cultural thing . Cultures that stress education have better educated kids . The US just elected a climate change and free trade denier . We do not have a culture that stresses the importance of education .