48.92% is the change from 509 to 758
Calculation steps:
[( 758 - 509 ) ÷ 509] x 100 = 48.92%
Formula
Percentage change = [(758 - 509) / 509] x 100
Subtract the new number by the original number
758 - 509 = 249
249 ÷ 509 = 0.48919449901768175
0.48919449901768175 x 100 = 48.92%