-50.86% is the change from 696 to 342
Calculation steps:
[( 342 - 696 ) ÷ 696] x 100 = -50.86%
Formula
Percentage change = [(342 - 696) / 696] x 100
Subtract the new number by the original number
342 - 696 = -354
-354 ÷ 696 = -0.5086206896551724
-0.5086206896551724 x 100 = -50.86%