-11.06% is the change from 931 to 828
Calculation steps:
[( 828 - 931 ) ÷ 931] x 100 = -11.06%
Formula
Percentage change = [(828 - 931) / 931] x 100
Subtract the new number by the original number
828 - 931 = -103
-103 ÷ 931 = -0.11063372717508056
-0.11063372717508056 x 100 = -11.06%