49.51% is the change from 509 to 761
Calculation steps:
[( 761 - 509 ) ÷ 509] x 100 = 49.51%
Formula
Percentage change = [(761 - 509) / 509] x 100
Subtract the new number by the original number
761 - 509 = 252
252 ÷ 509 = 0.4950884086444008
0.4950884086444008 x 100 = 49.51%