67.08% is the change from 401 to 670
Calculation steps:
[( 670 - 401 ) ÷ 401] x 100 = 67.08%
Formula
Percentage change = [(670 - 401) / 401] x 100
Subtract the new number by the original number
670 - 401 = 269
269 ÷ 401 = 0.6708229426433915
0.6708229426433915 x 100 = 67.08%