15.21% is the change from 263 to 303
Calculation steps:
[( 303 - 263 ) ÷ 263] x 100 = 15.21%
Formula
Percentage change = [(303 - 263) / 263] x 100
Subtract the new number by the original number
303 - 263 = 40
40 ÷ 263 = 0.1520912547528517
0.1520912547528517 x 100 = 15.21%