-96.95% is the change from 819 to 25
Calculation steps:
[( 25 - 819 ) ÷ 819] x 100 = -96.95%
Formula
Percentage change = [(25 - 819) / 819] x 100
Subtract the new number by the original number
25 - 819 = -794
-794 ÷ 819 = -0.9694749694749695
-0.9694749694749695 x 100 = -96.95%