-47% is the change from 649 to 344
Calculation steps:
[( 344 - 649 ) ÷ 649] x 100 = -47%
Formula
Percentage change = [(344 - 649) / 649] x 100
Subtract the new number by the original number
344 - 649 = -305
-305 ÷ 649 = -0.4699537750385208
-0.4699537750385208 x 100 = -47%