592.59% is the change from 81 to 561
Calculation steps:
[( 561 - 81 ) ÷ 81] x 100 = 592.59%
Formula
Percentage change = [(561 - 81) / 81] x 100
Subtract the new number by the original number
561 - 81 = 480
480 ÷ 81 = 5.925925925925926
5.925925925925926 x 100 = 592.59%