-93.83% is the change from 664 to 41
Calculation steps:
[( 41 - 664 ) ÷ 664] x 100 = -93.83%
Formula
Percentage change = [(41 - 664) / 664] x 100
Subtract the new number by the original number
41 - 664 = -623
-623 ÷ 664 = -0.9382530120481928
-0.9382530120481928 x 100 = -93.83%