-27.7% is the change from 556 to 402
Calculation steps:
[( 402 - 556 ) ÷ 556] x 100 = -27.7%
Formula
Percentage change = [(402 - 556) / 556] x 100
Subtract the new number by the original number
402 - 556 = -154
-154 ÷ 556 = -0.27697841726618705
-0.27697841726618705 x 100 = -27.7%