-57.1% is the change from 711 to 305
Calculation steps:
[( 305 - 711 ) ÷ 711] x 100 = -57.1%
Formula
Percentage change = [(305 - 711) / 711] x 100
Subtract the new number by the original number
305 - 711 = -406
-406 ÷ 711 = -0.5710267229254571
-0.5710267229254571 x 100 = -57.1%