23.2% is the change from 250 to 308
Calculation steps:
[( 308 - 250 ) ÷ 250] x 100 = 23.2%
Formula
Percentage change = [(308 - 250) / 250] x 100
Subtract the new number by the original number
308 - 250 = 58
58 ÷ 250 = 0.232
0.232 x 100 = 23.2%
Example