59.33% is the change from 509 to 811
Calculation steps:
[( 811 - 509 ) ÷ 509] x 100 = 59.33%
Formula
Percentage change = [(811 - 509) / 509] x 100
Subtract the new number by the original number
811 - 509 = 302
302 ÷ 509 = 0.593320235756385
0.593320235756385 x 100 = 59.33%