18.63% is the change from 263 to 312
Calculation steps:
[( 312 - 263 ) ÷ 263] x 100 = 18.63%
Formula
Percentage change = [(312 - 263) / 263] x 100
Subtract the new number by the original number
312 - 263 = 49
49 ÷ 263 = 0.18631178707224336
0.18631178707224336 x 100 = 18.63%