-41.77% is the change from 857 to 499
Calculation steps:
[( 499 - 857 ) ÷ 857] x 100 = -41.77%
Formula
Percentage change = [(499 - 857) / 857] x 100
Subtract the new number by the original number
499 - 857 = -358
-358 ÷ 857 = -0.4177362893815636
-0.4177362893815636 x 100 = -41.77%