-89.67% is the change from 658 to 68
Calculation steps:
[( 68 - 658 ) ÷ 658] x 100 = -89.67%
Formula
Percentage change = [(68 - 658) / 658] x 100
Subtract the new number by the original number
68 - 658 = -590
-590 ÷ 658 = -0.8966565349544073
-0.8966565349544073 x 100 = -89.67%