99.12% is the change from 228 to 454
Calculation steps:
[( 454 - 228 ) ÷ 228] x 100 = 99.12%
Formula
Percentage change = [(454 - 228) / 228] x 100
Subtract the new number by the original number
454 - 228 = 226
226 ÷ 228 = 0.9912280701754386
0.9912280701754386 x 100 = 99.12%