-81.65% is the change from 556 to 102
Calculation steps:
[( 102 - 556 ) ÷ 556] x 100 = -81.65%
Formula
Percentage change = [(102 - 556) / 556] x 100
Subtract the new number by the original number
102 - 556 = -454
-454 ÷ 556 = -0.8165467625899281
-0.8165467625899281 x 100 = -81.65%