-39.96% is the change from 976 to 586
Calculation steps:
[( 586 - 976 ) ÷ 976] x 100 = -39.96%
Formula
Percentage change = [(586 - 976) / 976] x 100
Subtract the new number by the original number
586 - 976 = -390
-390 ÷ 976 = -0.39959016393442626
-0.39959016393442626 x 100 = -39.96%