20% is the change from 485 to 582
Calculation steps:
[( 582 - 485 ) ÷ 485] x 100 = 20%
Formula
Percentage change = [(582 - 485) / 485] x 100
Subtract the new number by the original number
582 - 485 = 97
97 ÷ 485 = 0.2
0.2 x 100 = 20%
Example