-48.86% is the change from 657 to 336
Calculation steps:
[( 336 - 657 ) ÷ 657] x 100 = -48.86%
Formula
Percentage change = [(336 - 657) / 657] x 100
Subtract the new number by the original number
336 - 657 = -321
-321 ÷ 657 = -0.4885844748858447
-0.4885844748858447 x 100 = -48.86%