-3.99% is the change from 853 to 819
Calculation steps:
[( 819 - 853 ) ÷ 853] x 100 = -3.99%
Formula
Percentage change = [(819 - 853) / 853] x 100
Subtract the new number by the original number
819 - 853 = -34
-34 ÷ 853 = -0.03985932004689332
-0.03985932004689332 x 100 = -3.99%