-8.42% is the change from 606 to 555
Calculation steps:
[( 555 - 606 ) ÷ 606] x 100 = -8.42%
Formula
Percentage change = [(555 - 606) / 606] x 100
Subtract the new number by the original number
555 - 606 = -51
-51 ÷ 606 = -0.08415841584158416
-0.08415841584158416 x 100 = -8.42%