38.05% is the change from 226 to 312
Calculation steps:
[( 312 - 226 ) ÷ 226] x 100 = 38.05%
Formula
Percentage change = [(312 - 226) / 226] x 100
Subtract the new number by the original number
312 - 226 = 86
86 ÷ 226 = 0.3805309734513274
0.3805309734513274 x 100 = 38.05%