-28.46% is the change from 671 to 480
Calculation steps:
[( 480 - 671 ) ÷ 671] x 100 = -28.46%
Formula
Percentage change = [(480 - 671) / 671] x 100
Subtract the new number by the original number
480 - 671 = -191
-191 ÷ 671 = -0.2846497764530551
-0.2846497764530551 x 100 = -28.46%