-77.66% is the change from 649 to 145
Calculation steps:
[( 145 - 649 ) ÷ 649] x 100 = -77.66%
Formula
Percentage change = [(145 - 649) / 649] x 100
Subtract the new number by the original number
145 - 649 = -504
-504 ÷ 649 = -0.7765793528505393
-0.7765793528505393 x 100 = -77.66%