Smart Chef Company produces three models of induction cookers: portable, free-standing and built-in. Budgeted and actual operating data for the companys fourth quarter 2015 are as follows:

Budgeted operating data, fourth quarter 2015

Selling price ($) Variable cost per unit ($) Contribution margin per unit ($) Sales volume in units Portable 580 100 480 500

Free-standing 1200 320 880 320

Built-in 1600 480 1120 180 1,000

Actual operating data, fourth quarter 2015

Selling price ($) Variable cost per unit ($) Contribution margin per unit ($) Sales volume in units

Portable 600 90 510 600

Free-standing 1100 300 800 350

Built-in 1500 500 1000 60

1000 60 1,110 \

equired:

a Compute the actual and budgeted contribution margins in dollars for each product and in total for the fourth quarter of 2015.

b Calculate the actual and budgeted sales mixes for the three products for the fourth quarter of 20l5.

c Calculate total sales-volume, sales-mix, and sales-quantity variances for the fourth quarter of 2015. (Calculate all variances in terms of contribution margins.)

d Write a paragraph or two comparing actual results to budgeted amounts.