-46.72% is the change from 839 to 447
Calculation steps:
[( 447 - 839 ) ÷ 839] x 100 = -46.72%
Formula
Percentage change = [(447 - 839) / 839] x 100
Subtract the new number by the original number
447 - 839 = -392
-392 ÷ 839 = -0.46722288438617404
-0.46722288438617404 x 100 = -46.72%