-42.79% is the change from 839 to 480
Calculation steps:
[( 480 - 839 ) ÷ 839] x 100 = -42.79%
Formula
Percentage change = [(480 - 839) / 839] x 100
Subtract the new number by the original number
480 - 839 = -359
-359 ÷ 839 = -0.42789034564958284
-0.42789034564958284 x 100 = -42.79%