5.21% is the change from 288 to 303
Calculation steps:
[( 303 - 288 ) ÷ 288] x 100 = 5.21%
Formula
Percentage change = [(303 - 288) / 288] x 100
Subtract the new number by the original number
303 - 288 = 15
15 ÷ 288 = 0.052083333333333336
0.052083333333333336 x 100 = 5.21%