27.63% is the change from 228 to 291
Calculation steps:
[( 291 - 228 ) ÷ 228] x 100 = 27.63%
Formula
Percentage change = [(291 - 228) / 228] x 100
Subtract the new number by the original number
291 - 228 = 63
63 ÷ 228 = 0.27631578947368424
0.27631578947368424 x 100 = 27.63%