-48.39% is the change from 930 to 480
Calculation steps:
[( 480 - 930 ) ÷ 930] x 100 = -48.39%
Formula
Percentage change = [(480 - 930) / 930] x 100
Subtract the new number by the original number
480 - 930 = -450
-450 ÷ 930 = -0.4838709677419355
-0.4838709677419355 x 100 = -48.39%