-98.62% is the change from 652 to 9
Calculation steps:
[( 9 - 652 ) ÷ 652] x 100 = -98.62%
Formula
Percentage change = [(9 - 652) / 652] x 100
Subtract the new number by the original number
9 - 652 = -643
-643 ÷ 652 = -0.9861963190184049
-0.9861963190184049 x 100 = -98.62%