39.2% is the change from 671 to 934
Calculation steps:
[( 934 - 671 ) ÷ 671] x 100 = 39.2%
Formula
Percentage change = [(934 - 671) / 671] x 100
Subtract the new number by the original number
934 - 671 = 263
263 ÷ 671 = 0.3919523099850969
0.3919523099850969 x 100 = 39.2%