-37.44% is the change from 649 to 406
Calculation steps:
[( 406 - 649 ) ÷ 649] x 100 = -37.44%
Formula
Percentage change = [(406 - 649) / 649] x 100
Subtract the new number by the original number
406 - 649 = -243
-243 ÷ 649 = -0.37442218798151
-0.37442218798151 x 100 = -37.44%