240% is the change from 145 to 493
Calculation steps:
[( 493 - 145 ) ÷ 145] x 100 = 240%
Formula
Percentage change = [(493 - 145) / 145] x 100
Subtract the new number by the original number
493 - 145 = 348
348 ÷ 145 = 2.4
2.4 x 100 = 240%
Example