i need som help on this one Perdent mixture problem...

Many fruit drinks are actually only 5% real fruit juice. If you let 2oz. of water evaporate frome 12oz. of a drink that is 5% fruit juice, what is the percent concentration of the result?

I've been have troubl with this one... Math Guru helped me... bu the only thing is that i dont know how they got a .95 in the problem...

thanks