-28.81% is the change from 840 to 598
Calculation steps:
[( 598 - 840 ) ÷ 840] x 100 = -28.81%
Formula
Percentage change = [(598 - 840) / 840] x 100
Subtract the new number by the original number
598 - 840 = -242
-242 ÷ 840 = -0.28809523809523807
-0.28809523809523807 x 100 = -28.81%