67.59% is the change from 398 to 667
Calculation steps:
[( 667 - 398 ) ÷ 398] x 100 = 67.59%
Formula
Percentage change = [(667 - 398) / 398] x 100
Subtract the new number by the original number
667 - 398 = 269
269 ÷ 398 = 0.6758793969849246
0.6758793969849246 x 100 = 67.59%