-77.97% is the change from 649 to 143
Calculation steps:
[( 143 - 649 ) ÷ 649] x 100 = -77.97%
Formula
Percentage change = [(143 - 649) / 649] x 100
Subtract the new number by the original number
143 - 649 = -506
-506 ÷ 649 = -0.7796610169491526
-0.7796610169491526 x 100 = -77.97%