-50.1% is the change from 976 to 487
Calculation steps:
[( 487 - 976 ) ÷ 976] x 100 = -50.1%
Formula
Percentage change = [(487 - 976) / 976] x 100
Subtract the new number by the original number
487 - 976 = -489
-489 ÷ 976 = -0.5010245901639344
-0.5010245901639344 x 100 = -50.1%