-51.9% is the change from 711 to 342
Calculation steps:
[( 342 - 711 ) ÷ 711] x 100 = -51.9%
Formula
Percentage change = [(342 - 711) / 711] x 100
Subtract the new number by the original number
342 - 711 = -369
-369 ÷ 711 = -0.5189873417721519
-0.5189873417721519 x 100 = -51.9%