-3.27% is the change from 949 to 918
Calculation steps:
[( 918 - 949 ) ÷ 949] x 100 = -3.27%
Formula
Percentage change = [(918 - 949) / 949] x 100
Subtract the new number by the original number
918 - 949 = -31
-31 ÷ 949 = -0.032665964172813484
-0.032665964172813484 x 100 = -3.27%