-20.63% is the change from 480 to 381
Calculation steps:
[( 381 - 480 ) ÷ 480] x 100 = -20.63%
Formula
Percentage change = [(381 - 480) / 480] x 100
Subtract the new number by the original number
381 - 480 = -99
-99 ÷ 480 = -0.20625
-0.20625 x 100 = -20.63%