[tex]\\\frac{1}{100}*10^9=10^{-2}*10^9=10^{-2+9}=10^7[/tex]
1% liczby 10^9 = 1% * 10^9 = 1/100 * 10^9 = 10^(-2) * 10^9 = 10^(-2 + 9) = 10^7 = 10 000 000