-50.92% is the change from 976 to 479
Calculation steps:
[( 479 - 976 ) ÷ 976] x 100 = -50.92%
Formula
Percentage change = [(479 - 976) / 976] x 100
Subtract the new number by the original number
479 - 976 = -497
-497 ÷ 976 = -0.5092213114754098
-0.5092213114754098 x 100 = -50.92%