-69.41% is the change from 863 to 264
Calculation steps:
[( 264 - 863 ) ÷ 863] x 100 = -69.41%
Formula
Percentage change = [(264 - 863) / 863] x 100
Subtract the new number by the original number
264 - 863 = -599
-599 ÷ 863 = -0.694090382387022
-0.694090382387022 x 100 = -69.41%