28.19% is the change from 227 to 291
Calculation steps:
[( 291 - 227 ) ÷ 227] x 100 = 28.19%
Formula
Percentage change = [(291 - 227) / 227] x 100
Subtract the new number by the original number
291 - 227 = 64
64 ÷ 227 = 0.28193832599118945
0.28193832599118945 x 100 = 28.19%