-54.55% is the change from 11 to 5
Calculation steps:
[( 5 - 11 ) ÷ 11] x 100 = -54.55%
Formula
Percentage change = [(5 - 11) / 11] x 100
Subtract the new number by the original number
5 - 11 = -6
-6 ÷ 11 = -0.5454545454545454
-0.5454545454545454 x 100 = -54.55%