9.55% is the change from 670 to 734
Calculation steps:
[( 734 - 670 ) ÷ 670] x 100 = 9.55%
Formula
Percentage change = [(734 - 670) / 670] x 100
Subtract the new number by the original number
734 - 670 = 64
64 ÷ 670 = 0.0955223880597015
0.0955223880597015 x 100 = 9.55%