-81.07% is the change from 391 to 74
Calculation steps:
[( 74 - 391 ) ÷ 391] x 100 = -81.07%
Formula
Percentage change = [(74 - 391) / 391] x 100
Subtract the new number by the original number
74 - 391 = -317
-317 ÷ 391 = -0.8107416879795396
-0.8107416879795396 x 100 = -81.07%