-20.96% is the change from 649 to 513
Calculation steps:
[( 513 - 649 ) ÷ 649] x 100 = -20.96%
Formula
Percentage change = [(513 - 649) / 649] x 100
Subtract the new number by the original number
513 - 649 = -136
-136 ÷ 649 = -0.20955315870570107
-0.20955315870570107 x 100 = -20.96%