62.34% is the change from 308 to 500
Calculation steps:
[( 500 - 308 ) ÷ 308] x 100 = 62.34%
Formula
Percentage change = [(500 - 308) / 308] x 100
Subtract the new number by the original number
500 - 308 = 192
192 ÷ 308 = 0.6233766233766234
0.6233766233766234 x 100 = 62.34%