317.21% is the change from 122 to 509
Calculation steps:
[( 509 - 122 ) ÷ 122] x 100 = 317.21%
Formula
Percentage change = [(509 - 122) / 122] x 100
Subtract the new number by the original number
509 - 122 = 387
387 ÷ 122 = 3.1721311475409837
3.1721311475409837 x 100 = 317.21%