-90.63% is the change from 587 to 55
Calculation steps:
[( 55 - 587 ) ÷ 587] x 100 = -90.63%
Formula
Percentage change = [(55 - 587) / 587] x 100
Subtract the new number by the original number
55 - 587 = -532
-532 ÷ 587 = -0.9063032367972743
-0.9063032367972743 x 100 = -90.63%