-20.67% is the change from 479 to 380
Calculation steps:
[( 380 - 479 ) ÷ 479] x 100 = -20.67%
Formula
Percentage change = [(380 - 479) / 479] x 100
Subtract the new number by the original number
380 - 479 = -99
-99 ÷ 479 = -0.20668058455114824
-0.20668058455114824 x 100 = -20.67%