-43.16% is the change from 855 to 486
Calculation steps:
[( 486 - 855 ) ÷ 855] x 100 = -43.16%
Formula
Percentage change = [(486 - 855) / 855] x 100
Subtract the new number by the original number
486 - 855 = -369
-369 ÷ 855 = -0.43157894736842106
-0.43157894736842106 x 100 = -43.16%