-38.78% is the change from 949 to 581
Calculation steps:
[( 581 - 949 ) ÷ 949] x 100 = -38.78%
Formula
Percentage change = [(581 - 949) / 949] x 100
Subtract the new number by the original number
581 - 949 = -368
-368 ÷ 949 = -0.38777660695468913
-0.38777660695468913 x 100 = -38.78%