-97.01% is the change from 835 to 25
Calculation steps:
[( 25 - 835 ) ÷ 835] x 100 = -97.01%
Formula
Percentage change = [(25 - 835) / 835] x 100
Subtract the new number by the original number
25 - 835 = -810
-810 ÷ 835 = -0.9700598802395209
-0.9700598802395209 x 100 = -97.01%