20.59% is the change from 539 to 650
Calculation steps:
[( 650 - 539 ) ÷ 539] x 100 = 20.59%
Formula
Percentage change = [(650 - 539) / 539] x 100
Subtract the new number by the original number
650 - 539 = 111
111 ÷ 539 = 0.20593692022263452
0.20593692022263452 x 100 = 20.59%