-82.33% is the change from 566 to 100
Calculation steps:
[( 100 - 566 ) ÷ 566] x 100 = -82.33%
Formula
Percentage change = [(100 - 566) / 566] x 100
Subtract the new number by the original number
100 - 566 = -466
-466 ÷ 566 = -0.823321554770318
-0.823321554770318 x 100 = -82.33%