-75.19% is the change from 649 to 161
Calculation steps:
[( 161 - 649 ) ÷ 649] x 100 = -75.19%
Formula
Percentage change = [(161 - 649) / 649] x 100
Subtract the new number by the original number
161 - 649 = -488
-488 ÷ 649 = -0.7519260400616333
-0.7519260400616333 x 100 = -75.19%