-90.15% is the change from 711 to 70
Calculation steps:
[( 70 - 711 ) ÷ 711] x 100 = -90.15%
Formula
Percentage change = [(70 - 711) / 711] x 100
Subtract the new number by the original number
70 - 711 = -641
-641 ÷ 711 = -0.9015471167369902
-0.9015471167369902 x 100 = -90.15%