-48.18% is the change from 685 to 355
Calculation steps:
[( 355 - 685 ) ÷ 685] x 100 = -48.18%
Formula
Percentage change = [(355 - 685) / 685] x 100
Subtract the new number by the original number
355 - 685 = -330
-330 ÷ 685 = -0.48175182481751827
-0.48175182481751827 x 100 = -48.18%