100% is a whole (1)
11/20 = (1 ÷ 20) x 11
1 ÷ 20
1 ÷ 2 is a half, so equals 0.5. So, move the decimal point to get 0.05.
0.05 x 11
5 x 11 = 55
When you change 0.05 to 5, you are moving the decimal 2 places. So, moving it 1 will give you 5.5, and then another will get you 0.55.
Your answer: 0.55!
