-30.13% is the change from 863 to 603
Calculation steps:
[( 603 - 863 ) ÷ 863] x 100 = -30.13%
Formula
Percentage change = [(603 - 863) / 863] x 100
Subtract the new number by the original number
603 - 863 = -260
-260 ÷ 863 = -0.30127462340672073
-0.30127462340672073 x 100 = -30.13%