-50% is the change from 692 to 346
Calculation steps:
[( 346 - 692 ) ÷ 692] x 100 = -50%
Formula
Percentage change = [(346 - 692) / 692] x 100
Subtract the new number by the original number
346 - 692 = -346
-346 ÷ 692 = -0.5
-0.5 x 100 = -50%
Example