-80.43% is the change from 649 to 127
Calculation steps:
[( 127 - 649 ) ÷ 649] x 100 = -80.43%
Formula
Percentage change = [(127 - 649) / 649] x 100
Subtract the new number by the original number
127 - 649 = -522
-522 ÷ 649 = -0.8043143297380585
-0.8043143297380585 x 100 = -80.43%