-90.89% is the change from 604 to 55
Calculation steps:
[( 55 - 604 ) ÷ 604] x 100 = -90.89%
Formula
Percentage change = [(55 - 604) / 604] x 100
Subtract the new number by the original number
55 - 604 = -549
-549 ÷ 604 = -0.9089403973509934
-0.9089403973509934 x 100 = -90.89%