53.6% is the change from 500 to 768
Calculation steps:
[( 768 - 500 ) ÷ 500] x 100 = 53.6%
Formula
Percentage change = [(768 - 500) / 500] x 100
Subtract the new number by the original number
768 - 500 = 268
268 ÷ 500 = 0.536
0.536 x 100 = 53.6%
Example