-52.86% is the change from 857 to 404
Calculation steps:
[( 404 - 857 ) ÷ 857] x 100 = -52.86%
Formula
Percentage change = [(404 - 857) / 857] x 100
Subtract the new number by the original number
404 - 857 = -453
-453 ÷ 857 = -0.5285880980163361
-0.5285880980163361 x 100 = -52.86%