42.69% is the change from 670 to 956
Calculation steps:
[( 956 - 670 ) ÷ 670] x 100 = 42.69%
Formula
Percentage change = [(956 - 670) / 670] x 100
Subtract the new number by the original number
956 - 670 = 286
286 ÷ 670 = 0.42686567164179107
0.42686567164179107 x 100 = 42.69%