-89.36% is the change from 658 to 70
Calculation steps:
[( 70 - 658 ) ÷ 658] x 100 = -89.36%
Formula
Percentage change = [(70 - 658) / 658] x 100
Subtract the new number by the original number
70 - 658 = -588
-588 ÷ 658 = -0.8936170212765957
-0.8936170212765957 x 100 = -89.36%