-10.9% is the change from 798 to 711
Calculation steps:
[( 711 - 798 ) ÷ 798] x 100 = -10.9%
Formula
Percentage change = [(711 - 798) / 798] x 100
Subtract the new number by the original number
711 - 798 = -87
-87 ÷ 798 = -0.10902255639097744
-0.10902255639097744 x 100 = -10.9%