the standard mixture of material x and material y for the production of product z is 620456

The standard mixture of Material X and Material Y for the production of Product Z is as follows:

Material X: 40% @ Rs. 400 per kg.

Material Y: 60% @ Rs. 600 per kg.

A standard loss of 10% is normally anticipated in production. The following actual data are available for the month of January, 2010:

180 kg of Material X have been used @ Rs. 360 per kg.

220 kg of Material Y have been used @ Rs. 680 per kg.

The actual production of Product Z during January 2010 was 369 kg.

Calculate the Material Variances.