-97.1% is the change from 863 to 25
Calculation steps:
[( 25 - 863 ) ÷ 863] x 100 = -97.1%
Formula
Percentage change = [(25 - 863) / 863] x 100
Subtract the new number by the original number
25 - 863 = -838
-838 ÷ 863 = -0.9710312862108922
-0.9710312862108922 x 100 = -97.1%