-50% is the change from 696 to 348
Calculation steps:
[( 348 - 696 ) ÷ 696] x 100 = -50%
Formula
Percentage change = [(348 - 696) / 696] x 100
Subtract the new number by the original number
348 - 696 = -348
-348 ÷ 696 = -0.5
-0.5 x 100 = -50%
Example