16.6% is the change from 500 to 583
Calculation steps:
[( 583 - 500 ) ÷ 500] x 100 = 16.6%
Formula
Percentage change = [(583 - 500) / 500] x 100
Subtract the new number by the original number
583 - 500 = 83
83 ÷ 500 = 0.166
0.166 x 100 = 16.6%
Example