34.36% is the change from 227 to 305
Calculation steps:
[( 305 - 227 ) ÷ 227] x 100 = 34.36%
Formula
Percentage change = [(305 - 227) / 227] x 100
Subtract the new number by the original number
305 - 227 = 78
78 ÷ 227 = 0.3436123348017621
0.3436123348017621 x 100 = 34.36%