63.64% is the change from 11 to 18
Calculation steps:
[( 18 - 11 ) ÷ 11] x 100 = 63.64%
Formula
Percentage change = [(18 - 11) / 11] x 100
Subtract the new number by the original number
18 - 11 = 7
7 ÷ 11 = 0.6363636363636364
0.6363636363636364 x 100 = 63.64%