-87.31% is the change from 709 to 90
Calculation steps:
[( 90 - 709 ) ÷ 709] x 100 = -87.31%
Formula
Percentage change = [(90 - 709) / 709] x 100
Subtract the new number by the original number
90 - 709 = -619
-619 ÷ 709 = -0.8730606488011283
-0.8730606488011283 x 100 = -87.31%