20.41% is the change from 485 to 584
Calculation steps:
[( 584 - 485 ) ÷ 485] x 100 = 20.41%
Formula
Percentage change = [(584 - 485) / 485] x 100
Subtract the new number by the original number
584 - 485 = 99
99 ÷ 485 = 0.20412371134020618
0.20412371134020618 x 100 = 20.41%