57.24% is the change from 145 to 228
Calculation steps:
[( 228 - 145 ) ÷ 145] x 100 = 57.24%
Formula
Percentage change = [(228 - 145) / 145] x 100
Subtract the new number by the original number
228 - 145 = 83
83 ÷ 145 = 0.5724137931034483
0.5724137931034483 x 100 = 57.24%