-81.75% is the change from 559 to 102
Calculation steps:
[( 102 - 559 ) ÷ 559] x 100 = -81.75%
Formula
Percentage change = [(102 - 559) / 559] x 100
Subtract the new number by the original number
102 - 559 = -457
-457 ÷ 559 = -0.817531305903399
-0.817531305903399 x 100 = -81.75%