-50.06% is the change from 853 to 426
Calculation steps:
[( 426 - 853 ) ÷ 853] x 100 = -50.06%
Formula
Percentage change = [(426 - 853) / 853] x 100
Subtract the new number by the original number
426 - 853 = -427
-427 ÷ 853 = -0.5005861664712778
-0.5005861664712778 x 100 = -50.06%