-3.08% is the change from 845 to 819
Calculation steps:
[( 819 - 845 ) ÷ 845] x 100 = -3.08%
Formula
Percentage change = [(819 - 845) / 845] x 100
Subtract the new number by the original number
819 - 845 = -26
-26 ÷ 845 = -0.03076923076923077
-0.03076923076923077 x 100 = -3.08%