-46.84% is the change from 649 to 345
Calculation steps:
[( 345 - 649 ) ÷ 649] x 100 = -46.84%
Formula
Percentage change = [(345 - 649) / 649] x 100
Subtract the new number by the original number
345 - 649 = -304
-304 ÷ 649 = -0.46841294298921415
-0.46841294298921415 x 100 = -46.84%