-47.31% is the change from 949 to 500
Calculation steps:
[( 500 - 949 ) ÷ 949] x 100 = -47.31%
Formula
Percentage change = [(500 - 949) / 949] x 100
Subtract the new number by the original number
500 - 949 = -449
-449 ÷ 949 = -0.4731296101159115
-0.4731296101159115 x 100 = -47.31%