-98.57% is the change from 700 to 10
Calculation steps:
[( 10 - 700 ) ÷ 700] x 100 = -98.57%
Formula
Percentage change = [(10 - 700) / 700] x 100
Subtract the new number by the original number
10 - 700 = -690
-690 ÷ 700 = -0.9857142857142858
-0.9857142857142858 x 100 = -98.57%