-28.41% is the change from 711 to 509
Calculation steps:
[( 509 - 711 ) ÷ 711] x 100 = -28.41%
Formula
Percentage change = [(509 - 711) / 711] x 100
Subtract the new number by the original number
509 - 711 = -202
-202 ÷ 711 = -0.2841068917018284
-0.2841068917018284 x 100 = -28.41%