-87.34% is the change from 711 to 90
Calculation steps:
[( 90 - 711 ) ÷ 711] x 100 = -87.34%
Formula
Percentage change = [(90 - 711) / 711] x 100
Subtract the new number by the original number
90 - 711 = -621
-621 ÷ 711 = -0.8734177215189873
-0.8734177215189873 x 100 = -87.34%