-40.25% is the change from 646 to 386
Calculation steps:
[( 386 - 646 ) ÷ 646] x 100 = -40.25%
Formula
Percentage change = [(386 - 646) / 646] x 100
Subtract the new number by the original number
386 - 646 = -260
-260 ÷ 646 = -0.4024767801857585
-0.4024767801857585 x 100 = -40.25%