1785.19% is the change from 27 to 509
Calculation steps:
[( 509 - 27 ) ÷ 27] x 100 = 1785.19%
Formula
Percentage change = [(509 - 27) / 27] x 100
Subtract the new number by the original number
509 - 27 = 482
482 ÷ 27 = 17.85185185185185
17.85185185185185 x 100 = 1785.19%