20.8% is the change from 250 to 302
Calculation steps:
[( 302 - 250 ) ÷ 250] x 100 = 20.8%
Formula
Percentage change = [(302 - 250) / 250] x 100
Subtract the new number by the original number
302 - 250 = 52
52 ÷ 250 = 0.208
0.208 x 100 = 20.8%
Example