50.46% is the change from 539 to 811
Calculation steps:
[( 811 - 539 ) ÷ 539] x 100 = 50.46%
Formula
Percentage change = [(811 - 539) / 539] x 100
Subtract the new number by the original number
811 - 539 = 272
272 ÷ 539 = 0.5046382189239332
0.5046382189239332 x 100 = 50.46%