2%= 2%:100%=0.02
62%=62%:100%=0.62
99%=99%:100%=0.99
0.95=0.95*100%=95%
4= 4*100%=400%
7=7*100%=700%
20% liczby 24
20%*24=0.2*24=4.8
10% liczby 540
10%*540=0.1*540=54
40% liczby 12
40%*12=0.4*12=4.8