-97.03% is the change from 843 to 25
Calculation steps:
[( 25 - 843 ) ÷ 843] x 100 = -97.03%
Formula
Percentage change = [(25 - 843) / 843] x 100
Subtract the new number by the original number
25 - 843 = -818
-818 ÷ 843 = -0.970344009489917
-0.970344009489917 x 100 = -97.03%