-30.95% is the change from 866 to 598
Calculation steps:
[( 598 - 866 ) ÷ 866] x 100 = -30.95%
Formula
Percentage change = [(598 - 866) / 866] x 100
Subtract the new number by the original number
598 - 866 = -268
-268 ÷ 866 = -0.3094688221709007
-0.3094688221709007 x 100 = -30.95%