-1.94% is the change from 566 to 555
Calculation steps:
[( 555 - 566 ) ÷ 566] x 100 = -1.94%
Formula
Percentage change = [(555 - 566) / 566] x 100
Subtract the new number by the original number
555 - 566 = -11
-11 ÷ 566 = -0.019434628975265017
-0.019434628975265017 x 100 = -1.94%