-71.04% is the change from 480 to 139
Calculation steps:
[( 139 - 480 ) ÷ 480] x 100 = -71.04%
Formula
Percentage change = [(139 - 480) / 480] x 100
Subtract the new number by the original number
139 - 480 = -341
-341 ÷ 480 = -0.7104166666666667
-0.7104166666666667 x 100 = -71.04%