-1.8% is the change from 556 to 546
Calculation steps:
[( 546 - 556 ) ÷ 556] x 100 = -1.8%
Formula
Percentage change = [(546 - 556) / 556] x 100
Subtract the new number by the original number
546 - 556 = -10
-10 ÷ 556 = -0.017985611510791366
-0.017985611510791366 x 100 = -1.8%