-14.34% is the change from 830 to 711
Calculation steps:
[( 711 - 830 ) ÷ 830] x 100 = -14.34%
Formula
Percentage change = [(711 - 830) / 830] x 100
Subtract the new number by the original number
711 - 830 = -119
-119 ÷ 830 = -0.14337349397590363
-0.14337349397590363 x 100 = -14.34%