Google can now calculate the tip if you can’t do the math
 

The tip calculator is a tool that you can find in the mobile versions of Google search for Android and iOS to calculate the tip and the amount of money each consumer has to pay from the total bill. Having trouble dividing the bill when going out for dinner with your friends? Google developed the Tip [...]

http://vr-zone.com/articles/google-c...-tip-cant-math