Pieco Ltd is producing a 'standard mix' by using $60kgs$ of material $x$ and $40kgs$ of material $Y.$ The standard loss of production is $30\%.$ The standard price of $x$ is $5$ per $kg$ and that of $Y10$ per $kg.$

The actual mixture and yield were as follows:

$x80kgs$ @ $4\mathrm{.}50$ per kg

$70kgs$ @ $8$ per kg

Actual yield is $115kgs.$

Calculate material variances.

$($CS Inter$)$