-1.97% is the change from 557 to 546
Calculation steps:
[( 546 - 557 ) ÷ 557] x 100 = -1.97%
Formula
Percentage change = [(546 - 557) / 557] x 100
Subtract the new number by the original number
546 - 557 = -11
-11 ÷ 557 = -0.019748653500897665
-0.019748653500897665 x 100 = -1.97%