-89.51% is the change from 391 to 41
Calculation steps:
[( 41 - 391 ) ÷ 391] x 100 = -89.51%
Formula
Percentage change = [(41 - 391) / 391] x 100
Subtract the new number by the original number
41 - 391 = -350
-350 ÷ 391 = -0.8951406649616368
-0.8951406649616368 x 100 = -89.51%