-25.26% is the change from 863 to 645
Calculation steps:
[( 645 - 863 ) ÷ 863] x 100 = -25.26%
Formula
Percentage change = [(645 - 863) / 863] x 100
Subtract the new number by the original number
645 - 863 = -218
-218 ÷ 863 = -0.2526071842410197
-0.2526071842410197 x 100 = -25.26%