-12.24% is the change from 931 to 817
Calculation steps:
[( 817 - 931 ) ÷ 931] x 100 = -12.24%
Formula
Percentage change = [(817 - 931) / 931] x 100
Subtract the new number by the original number
817 - 931 = -114
-114 ÷ 931 = -0.12244897959183673
-0.12244897959183673 x 100 = -12.24%