74.12% is the change from 228 to 397
Calculation steps:
[( 397 - 228 ) ÷ 228] x 100 = 74.12%
Formula
Percentage change = [(397 - 228) / 228] x 100
Subtract the new number by the original number
397 - 228 = 169
169 ÷ 228 = 0.7412280701754386
0.7412280701754386 x 100 = 74.12%