The following standards have been established for a raw material used to make product O$84$:

Standard quantity of the material per unit of output

Standard price of the material

The following data pertain to a recent month's operations:

Actual material purchased Actual cost of material purchased

Actual material used in production

Actual output

$7\mathrm{.}1$ meters $$18\mathrm{.}30$ per meter

$3,400$ meters $ $64,090$

$3,100$ meters

$500$ units of product O$84$

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

Required:

a$.$ What is the materials price variance for the month?

b$.$ What is the materials quantity variance for the month?