-84.79% is the change from 480 to 73
Calculation steps:
[( 73 - 480 ) ÷ 480] x 100 = -84.79%
Formula
Percentage change = [(73 - 480) / 480] x 100
Subtract the new number by the original number
73 - 480 = -407
-407 ÷ 480 = -0.8479166666666667
-0.8479166666666667 x 100 = -84.79%