97.37% is the change from 228 to 450
Calculation steps:
[( 450 - 228 ) ÷ 228] x 100 = 97.37%
Formula
Percentage change = [(450 - 228) / 228] x 100
Subtract the new number by the original number
450 - 228 = 222
222 ÷ 228 = 0.9736842105263158
0.9736842105263158 x 100 = 97.37%