48.33% is the change from 509 to 755
Calculation steps:
[( 755 - 509 ) ÷ 509] x 100 = 48.33%
Formula
Percentage change = [(755 - 509) / 509] x 100
Subtract the new number by the original number
755 - 509 = 246
246 ÷ 509 = 0.48330058939096265
0.48330058939096265 x 100 = 48.33%