-91.56% is the change from 391 to 33
Calculation steps:
[( 33 - 391 ) ÷ 391] x 100 = -91.56%
Formula
Percentage change = [(33 - 391) / 391] x 100
Subtract the new number by the original number
33 - 391 = -358
-358 ÷ 391 = -0.9156010230179028
-0.9156010230179028 x 100 = -91.56%