50.65% is the change from 539 to 812
Calculation steps:
[( 812 - 539 ) ÷ 539] x 100 = 50.65%
Formula
Percentage change = [(812 - 539) / 539] x 100
Subtract the new number by the original number
812 - 539 = 273
273 ÷ 539 = 0.5064935064935064
0.5064935064935064 x 100 = 50.65%