71.1% is the change from 263 to 450
Calculation steps:
[( 450 - 263 ) ÷ 263] x 100 = 71.1%
Formula
Percentage change = [(450 - 263) / 263] x 100
Subtract the new number by the original number
450 - 263 = 187
187 ÷ 263 = 0.7110266159695817
0.7110266159695817 x 100 = 71.1%