-9.71% is the change from 556 to 502
Calculation steps:
[( 502 - 556 ) ÷ 556] x 100 = -9.71%
Formula
Percentage change = [(502 - 556) / 556] x 100
Subtract the new number by the original number
502 - 556 = -54
-54 ÷ 556 = -0.09712230215827339
-0.09712230215827339 x 100 = -9.71%