-50.72% is the change from 696 to 343
Calculation steps:
[( 343 - 696 ) ÷ 696] x 100 = -50.72%
Formula
Percentage change = [(343 - 696) / 696] x 100
Subtract the new number by the original number
343 - 696 = -353
-353 ÷ 696 = -0.507183908045977
-0.507183908045977 x 100 = -50.72%