-98.77% is the change from 651 to 8
Calculation steps:
[( 8 - 651 ) ÷ 651] x 100 = -98.77%
Formula
Percentage change = [(8 - 651) / 651] x 100
Subtract the new number by the original number
8 - 651 = -643
-643 ÷ 651 = -0.9877112135176651
-0.9877112135176651 x 100 = -98.77%