117.52% is the change from 234 to 509
Calculation steps:
[( 509 - 234 ) ÷ 234] x 100 = 117.52%
Formula
Percentage change = [(509 - 234) / 234] x 100
Subtract the new number by the original number
509 - 234 = 275
275 ÷ 234 = 1.1752136752136753
1.1752136752136753 x 100 = 117.52%