-26.8% is the change from 556 to 407
Calculation steps:
[( 407 - 556 ) ÷ 556] x 100 = -26.8%
Formula
Percentage change = [(407 - 556) / 556] x 100
Subtract the new number by the original number
407 - 556 = -149
-149 ÷ 556 = -0.26798561151079137
-0.26798561151079137 x 100 = -26.8%