-30.66% is the change from 949 to 658
Calculation steps:
[( 658 - 949 ) ÷ 949] x 100 = -30.66%
Formula
Percentage change = [(658 - 949) / 949] x 100
Subtract the new number by the original number
658 - 949 = -291
-291 ÷ 949 = -0.3066385669125395
-0.3066385669125395 x 100 = -30.66%