-48.39% is the change from 651 to 336
Calculation steps:
[( 336 - 651 ) ÷ 651] x 100 = -48.39%
Formula
Percentage change = [(336 - 651) / 651] x 100
Subtract the new number by the original number
336 - 651 = -315
-315 ÷ 651 = -0.4838709677419355
-0.4838709677419355 x 100 = -48.39%