-12.03% is the change from 931 to 819
Calculation steps:
[( 819 - 931 ) ÷ 931] x 100 = -12.03%
Formula
Percentage change = [(819 - 931) / 931] x 100
Subtract the new number by the original number
819 - 931 = -112
-112 ÷ 931 = -0.12030075187969924
-0.12030075187969924 x 100 = -12.03%
Example