The following materials standards have been established for a particular product:

Standard quantity per unit of output $6\mathrm{.}4$ pounds

Standard price $$15\mathrm{.}20$ per pound

The following data pertain to operations concerning the product for the last month:

Actual materials purchased $7,800$ pounds

Actual cost of materials purchased $$64,880$

Actual materials used in production $7,300$ pounds

Actual output $900$ units

The direct materials purchases variance is computed when the materials are purchased.

What is the materials quantity variance for the month?