The following materials standards have been established for a particular produ

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

Standard quantity per unit of output

0.2 grams

Standard price

$18.90 per gram

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

Actual materials purchased

4800 grams

Actual cost of materials purchased

$86880

Actual materials used in production

4200 grams

Actual output

21080 units

Required:

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

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