103.33% is the change from 330 to 671
Calculation steps:
[( 671 - 330 ) ÷ 330] x 100 = 103.33%
Formula
Percentage change = [(671 - 330) / 330] x 100
Subtract the new number by the original number
671 - 330 = 341
341 ÷ 330 = 1.0333333333333334
1.0333333333333334 x 100 = 103.33%