A company has the following information for the number of seosnal sales for two years:

$\backslash$table$[[,$number of sales$],[$year $1,],[1,290],[2,364],[3,281],[4,112],[$year $2,],[1,658],[2,149],[3,299],[4,643]]$

Assuming the moving average is computed based on five periods.

The last ratio to moving average is