-27.99% is the change from 711 to 512
Calculation steps:
[( 512 - 711 ) ÷ 711] x 100 = -27.99%
Formula
Percentage change = [(512 - 711) / 711] x 100
Subtract the new number by the original number
512 - 711 = -199
-199 ÷ 711 = -0.279887482419128
-0.279887482419128 x 100 = -27.99%