-97.14% is the change from 700 to 20
Calculation steps:
[( 20 - 700 ) ÷ 700] x 100 = -97.14%
Formula
Percentage change = [(20 - 700) / 700] x 100
Subtract the new number by the original number
20 - 700 = -680
-680 ÷ 700 = -0.9714285714285714
-0.9714285714285714 x 100 = -97.14%