-42.49% is the change from 866 to 498
Calculation steps:
[( 498 - 866 ) ÷ 866] x 100 = -42.49%
Formula
Percentage change = [(498 - 866) / 866] x 100
Subtract the new number by the original number
498 - 866 = -368
-368 ÷ 866 = -0.42494226327944573
-0.42494226327944573 x 100 = -42.49%