-21.87% is the change from 910 to 711
Calculation steps:
[( 711 - 910 ) ÷ 910] x 100 = -21.87%
Formula
Percentage change = [(711 - 910) / 910] x 100
Subtract the new number by the original number
711 - 910 = -199
-199 ÷ 910 = -0.21868131868131868
-0.21868131868131868 x 100 = -21.87%