-90.46% is the change from 587 to 56
Calculation steps:
[( 56 - 587 ) ÷ 587] x 100 = -90.46%
Formula
Percentage change = [(56 - 587) / 587] x 100
Subtract the new number by the original number
56 - 587 = -531
-531 ÷ 587 = -0.9045996592844975
-0.9045996592844975 x 100 = -90.46%