6% is the change from 500 to 530
Calculation steps:
[( 530 - 500 ) ÷ 500] x 100 = 6%
Formula
Percentage change = [(530 - 500) / 500] x 100
Subtract the new number by the original number
530 - 500 = 30
30 ÷ 500 = 0.06
0.06 x 100 = 6%
Example