40.83% is the change from 671 to 945
Calculation steps:
[( 945 - 671 ) ÷ 671] x 100 = 40.83%
Formula
Percentage change = [(945 - 671) / 671] x 100
Subtract the new number by the original number
945 - 671 = 274
274 ÷ 671 = 0.4083457526080477
0.4083457526080477 x 100 = 40.83%