Plan the expected raw material purchase by the followings!

Opening stocks:

Minimum stock time norm:

Stock flow:

Net norm:

Scrap rate:

Defect rate:

Planned production:

$1900kg$

$6$ ?days

$6500kg$

$3\mathrm{.}2k\frac{g}{p}cs$

$5\%$

$7\%$

$30000pcs$