570.73% is the change from 82 to 550
Calculation steps:
[( 550 - 82 ) ÷ 82] x 100 = 570.73%
Formula
Percentage change = [(550 - 82) / 82] x 100
Subtract the new number by the original number
550 - 82 = 468
468 ÷ 82 = 5.7073170731707314
5.7073170731707314 x 100 = 570.73%