-78.43% is the change from 649 to 140
Calculation steps:
[( 140 - 649 ) ÷ 649] x 100 = -78.43%
Formula
Percentage change = [(140 - 649) / 649] x 100
Subtract the new number by the original number
140 - 649 = -509
-509 ÷ 649 = -0.7842835130970724
-0.7842835130970724 x 100 = -78.43%