How much more percent is 60% of 800 is greater than four-fifth of 400?

$\frac{60}{100}\times 800=480$                         

$$\begin{gathered} \frac{4}{5}\times 400=320 \\ difference =480-320= 160 \\ \frac{160}{400}\times 100\%=40\% \\ 60\% of 800 is greater than four-fifth of 400 by 40\% \end{gathered}$$