-28.97% is the change from 711 to 505
Calculation steps:
[( 505 - 711 ) ÷ 711] x 100 = -28.97%
Formula
Percentage change = [(505 - 711) / 711] x 100
Subtract the new number by the original number
505 - 711 = -206
-206 ÷ 711 = -0.28973277074542897
-0.28973277074542897 x 100 = -28.97%