17.94% is the change from 457 to 539
Calculation steps:
[( 539 - 457 ) ÷ 457] x 100 = 17.94%
Formula
Percentage change = [(539 - 457) / 457] x 100
Subtract the new number by the original number
539 - 457 = 82
82 ÷ 457 = 0.17943107221006566
0.17943107221006566 x 100 = 17.94%