-89.72% is the change from 399 to 41
Calculation steps:
[( 41 - 399 ) ÷ 399] x 100 = -89.72%
Formula
Percentage change = [(41 - 399) / 399] x 100
Subtract the new number by the original number
41 - 399 = -358
-358 ÷ 399 = -0.8972431077694235
-0.8972431077694235 x 100 = -89.72%