-77.91% is the change from 774 to 171
Calculation steps:
[( 171 - 774 ) ÷ 774] x 100 = -77.91%
Formula
Percentage change = [(171 - 774) / 774] x 100
Subtract the new number by the original number
171 - 774 = -603
-603 ÷ 774 = -0.7790697674418605
-0.7790697674418605 x 100 = -77.91%