-2.34% is the change from 853 to 833
Calculation steps:
[( 833 - 853 ) ÷ 853] x 100 = -2.34%
Formula
Percentage change = [(833 - 853) / 853] x 100
Subtract the new number by the original number
833 - 853 = -20
-20 ÷ 853 = -0.023446658851113716
-0.023446658851113716 x 100 = -2.34%