-97.06% is the change from 851 to 25
Calculation steps:
[( 25 - 851 ) ÷ 851] x 100 = -97.06%
Formula
Percentage change = [(25 - 851) / 851] x 100
Subtract the new number by the original number
25 - 851 = -826
-826 ÷ 851 = -0.9706227967097533
-0.9706227967097533 x 100 = -97.06%