-95.71% is the change from 700 to 30
Calculation steps:
[( 30 - 700 ) ÷ 700] x 100 = -95.71%
Formula
Percentage change = [(30 - 700) / 700] x 100
Subtract the new number by the original number
30 - 700 = -670
-670 ÷ 700 = -0.9571428571428572
-0.9571428571428572 x 100 = -95.71%