81.6% is the change from 500 to 908
Calculation steps:
[( 908 - 500 ) ÷ 500] x 100 = 81.6%
Formula
Percentage change = [(908 - 500) / 500] x 100
Subtract the new number by the original number
908 - 500 = 408
408 ÷ 500 = 0.816
0.816 x 100 = 81.6%
Example