-12.43% is the change from 949 to 831
Calculation steps:
[( 831 - 949 ) ÷ 949] x 100 = -12.43%
Formula
Percentage change = [(831 - 949) / 949] x 100
Subtract the new number by the original number
831 - 949 = -118
-118 ÷ 949 = -0.12434141201264488
-0.12434141201264488 x 100 = -12.43%