If you had any brains you'd know you don't count people that didn't vote - you only take into consideration the voters. If people are too young to vote - tough luck as they can vote when they are older, if they are too lazy to vote, well they deserve everything they get.Maths. Take the total population (ie the public) and divide it by those who voted to leave.
The MAJORITY of VOTERS chose to leave, deal with it.