24.48% is the change from 670 to 834
Calculation steps:
[( 834 - 670 ) ÷ 670] x 100 = 24.48%
Formula
Percentage change = [(834 - 670) / 670] x 100
Subtract the new number by the original number
834 - 670 = 164
164 ÷ 670 = 0.24477611940298508
0.24477611940298508 x 100 = 24.48%