-20% is the change from 55 to 44
Calculation steps:
[( 44 - 55 ) ÷ 55] x 100 = -20%
Formula
Percentage change = [(44 - 55) / 55] x 100
Subtract the new number by the original number
44 - 55 = -11
-11 ÷ 55 = -0.2
-0.2 x 100 = -20%
Example