-30.24% is the change from 949 to 662
Calculation steps:
[( 662 - 949 ) ÷ 949] x 100 = -30.24%
Formula
Percentage change = [(662 - 949) / 949] x 100
Subtract the new number by the original number
662 - 949 = -287
-287 ÷ 949 = -0.30242360379346683
-0.30242360379346683 x 100 = -30.24%