-98.94% is the change from 658 to 7
Calculation steps:
[( 7 - 658 ) ÷ 658] x 100 = -98.94%
Formula
Percentage change = [(7 - 658) / 658] x 100
Subtract the new number by the original number
7 - 658 = -651
-651 ÷ 658 = -0.9893617021276596
-0.9893617021276596 x 100 = -98.94%