58.35% is the change from 509 to 806
Calculation steps:
[( 806 - 509 ) ÷ 509] x 100 = 58.35%
Formula
Percentage change = [(806 - 509) / 509] x 100
Subtract the new number by the original number
806 - 509 = 297
297 ÷ 509 = 0.5834970530451866
0.5834970530451866 x 100 = 58.35%