-27.71% is the change from 480 to 347
Calculation steps:
[( 347 - 480 ) ÷ 480] x 100 = -27.71%
Formula
Percentage change = [(347 - 480) / 480] x 100
Subtract the new number by the original number
347 - 480 = -133
-133 ÷ 480 = -0.27708333333333335
-0.27708333333333335 x 100 = -27.71%