-3.78% is the change from 556 to 535
Calculation steps:
[( 535 - 556 ) ÷ 556] x 100 = -3.78%
Formula
Percentage change = [(535 - 556) / 556] x 100
Subtract the new number by the original number
535 - 556 = -21
-21 ÷ 556 = -0.03776978417266187
-0.03776978417266187 x 100 = -3.78%