-90.47% is the change from 577 to 55
Calculation steps:
[( 55 - 577 ) ÷ 577] x 100 = -90.47%
Formula
Percentage change = [(55 - 577) / 577] x 100
Subtract the new number by the original number
55 - 577 = -522
-522 ÷ 577 = -0.9046793760831889
-0.9046793760831889 x 100 = -90.47%