-1.82% is the change from 55 to 54
Calculation steps:
[( 54 - 55 ) ÷ 55] x 100 = -1.82%
Formula
Percentage change = [(54 - 55) / 55] x 100
Subtract the new number by the original number
54 - 55 = -1
-1 ÷ 55 = -0.01818181818181818
-0.01818181818181818 x 100 = -1.82%