271.03% is the change from 145 to 538
Calculation steps:
[( 538 - 145 ) ÷ 145] x 100 = 271.03%
Formula
Percentage change = [(538 - 145) / 145] x 100
Subtract the new number by the original number
538 - 145 = 393
393 ÷ 145 = 2.7103448275862068
2.7103448275862068 x 100 = 271.03%