-90.29% is the change from 556 to 54
Calculation steps:
[( 54 - 556 ) ÷ 556] x 100 = -90.29%
Formula
Percentage change = [(54 - 556) / 556] x 100
Subtract the new number by the original number
54 - 556 = -502
-502 ÷ 556 = -0.9028776978417267
-0.9028776978417267 x 100 = -90.29%