-8.94% is the change from 604 to 550
Calculation steps:
[( 550 - 604 ) ÷ 604] x 100 = -8.94%
Formula
Percentage change = [(550 - 604) / 604] x 100
Subtract the new number by the original number
550 - 604 = -54
-54 ÷ 604 = -0.08940397350993377
-0.08940397350993377 x 100 = -8.94%