-90.37% is the change from 561 to 54
Calculation steps:
[( 54 - 561 ) ÷ 561] x 100 = -90.37%
Formula
Percentage change = [(54 - 561) / 561] x 100
Subtract the new number by the original number
54 - 561 = -507
-507 ÷ 561 = -0.9037433155080213
-0.9037433155080213 x 100 = -90.37%