-89.75% is the change from 683 to 70
Calculation steps:
[( 70 - 683 ) ÷ 683] x 100 = -89.75%
Formula
Percentage change = [(70 - 683) / 683] x 100
Subtract the new number by the original number
70 - 683 = -613
-613 ÷ 683 = -0.8975109809663251
-0.8975109809663251 x 100 = -89.75%