1111.9% is the change from 42 to 509
Calculation steps:
[( 509 - 42 ) ÷ 42] x 100 = 1111.9%
Formula
Percentage change = [(509 - 42) / 42] x 100
Subtract the new number by the original number
509 - 42 = 467
467 ÷ 42 = 11.119047619047619
11.119047619047619 x 100 = 1111.9%