-73.07% is the change from 646 to 174
Calculation steps:
[( 174 - 646 ) ÷ 646] x 100 = -73.07%
Formula
Percentage change = [(174 - 646) / 646] x 100
Subtract the new number by the original number
174 - 646 = -472
-472 ÷ 646 = -0.7306501547987616
-0.7306501547987616 x 100 = -73.07%