-44.11% is the change from 857 to 479
Calculation steps:
[( 479 - 857 ) ÷ 857] x 100 = -44.11%
Formula
Percentage change = [(479 - 857) / 857] x 100
Subtract the new number by the original number
479 - 857 = -378
-378 ÷ 857 = -0.441073512252042
-0.441073512252042 x 100 = -44.11%