-92.39% is the change from 394 to 30
Calculation steps:
[( 30 - 394 ) ÷ 394] x 100 = -92.39%
Formula
Percentage change = [(30 - 394) / 394] x 100
Subtract the new number by the original number
30 - 394 = -364
-364 ÷ 394 = -0.9238578680203046
-0.9238578680203046 x 100 = -92.39%