-93.4% is the change from 621 to 41
Calculation steps:
[( 41 - 621 ) ÷ 621] x 100 = -93.4%
Formula
Percentage change = [(41 - 621) / 621] x 100
Subtract the new number by the original number
41 - 621 = -580
-580 ÷ 621 = -0.9339774557165862
-0.9339774557165862 x 100 = -93.4%