-41.76% is the change from 649 to 378
Calculation steps:
[( 378 - 649 ) ÷ 649] x 100 = -41.76%
Formula
Percentage change = [(378 - 649) / 649] x 100
Subtract the new number by the original number
378 - 649 = -271
-271 ÷ 649 = -0.41756548536209553
-0.41756548536209553 x 100 = -41.76%