-25.12% is the change from 649 to 486
Calculation steps:
[( 486 - 649 ) ÷ 649] x 100 = -25.12%
Formula
Percentage change = [(486 - 649) / 649] x 100
Subtract the new number by the original number
486 - 649 = -163
-163 ÷ 649 = -0.25115562403698
-0.25115562403698 x 100 = -25.12%