-78.02% is the change from 587 to 129
Calculation steps:
[( 129 - 587 ) ÷ 587] x 100 = -78.02%
Formula
Percentage change = [(129 - 587) / 587] x 100
Subtract the new number by the original number
129 - 587 = -458
-458 ÷ 587 = -0.7802385008517888
-0.7802385008517888 x 100 = -78.02%