-10.81% is the change from 555 to 495
Calculation steps:
[( 495 - 555 ) ÷ 555] x 100 = -10.81%
Formula
Percentage change = [(495 - 555) / 555] x 100
Subtract the new number by the original number
495 - 555 = -60
-60 ÷ 555 = -0.10810810810810811
-0.10810810810810811 x 100 = -10.81%