Rajah Caruth Nascar Driver
You check the world’s population, and knock off four zeroes. This is because “per cent” means “divide with hundred” and two decimals also means “divide with hundred”. There are two zeroes in “100″. Two zeroes taken twice is four zeroes. This you should do in your head. Much faster than having to bother with a calculator.
On your cell phone there is this little app area where there is a calculator. You open it. Then you enter the current population which is somewhere around 7,800,000,000 and then hit the multiply button and enter .0001 and hit the equal button. Whella!!!!!!!! You will have the answer and also be far less dependent upon the rest of us.