598.77% is the change from 81 to 566
Calculation steps:
[( 566 - 81 ) ÷ 81] x 100 = 598.77%
Formula
Percentage change = [(566 - 81) / 81] x 100
Subtract the new number by the original number
566 - 81 = 485
485 ÷ 81 = 5.987654320987654
5.987654320987654 x 100 = 598.77%