-52.4% is the change from 853 to 406
Calculation steps:
[( 406 - 853 ) ÷ 853] x 100 = -52.4%
Formula
Percentage change = [(406 - 853) / 853] x 100
Subtract the new number by the original number
406 - 853 = -447
-447 ÷ 853 = -0.5240328253223916
-0.5240328253223916 x 100 = -52.4%