-81.69% is the change from 557 to 102
Calculation steps:
[( 102 - 557 ) ÷ 557] x 100 = -81.69%
Formula
Percentage change = [(102 - 557) / 557] x 100
Subtract the new number by the original number
102 - 557 = -455
-455 ÷ 557 = -0.8168761220825853
-0.8168761220825853 x 100 = -81.69%