-81.73% is the change from 394 to 72
Calculation steps:
[( 72 - 394 ) ÷ 394] x 100 = -81.73%
Formula
Percentage change = [(72 - 394) / 394] x 100
Subtract the new number by the original number
72 - 394 = -322
-322 ÷ 394 = -0.817258883248731
-0.817258883248731 x 100 = -81.73%