321.38% is the change from 145 to 611
Calculation steps:
[( 611 - 145 ) ÷ 145] x 100 = 321.38%
Formula
Percentage change = [(611 - 145) / 145] x 100
Subtract the new number by the original number
611 - 145 = 466
466 ÷ 145 = 3.213793103448276
3.213793103448276 x 100 = 321.38%