890.91% is the change from 55 to 545
Calculation steps:
[( 545 - 55 ) ÷ 55] x 100 = 890.91%
Formula
Percentage change = [(545 - 55) / 55] x 100
Subtract the new number by the original number
545 - 55 = 490
490 ÷ 55 = 8.909090909090908
8.909090909090908 x 100 = 890.91%