-76.68% is the change from 819 to 191
Calculation steps:
[( 191 - 819 ) ÷ 819] x 100 = -76.68%
Formula
Percentage change = [(191 - 819) / 819] x 100
Subtract the new number by the original number
191 - 819 = -628
-628 ÷ 819 = -0.7667887667887668
-0.7667887667887668 x 100 = -76.68%