Answer:
EZ-Tax
                                                       Partner                 Staff             Total
a. Sales price variance             $104,000            ($110,000)      ($6,000) U
b. Activity variance                   $160,000           $420,000     $580,000 F
c. Mix variance                           $85,000           $180,000     $265,000 F
d. Quantity variance                $189,000             $70,000     $259,000 F
Explanation:
a) Data and Calculations:
                                                       Partner                 Staff
Budgeted billable rate per hour   $800                    $210    
Budgeted variable cost per hour    375                      120
Budgeted billable hours              5,000                20,000
Budgeted revenue             $4,000,000        $4,200,000
Budgeted variable cost         1,875,000          2,400,000
Actual revenue                  $4,264,000         $4,510,000
Actual billable hours                   5,200                22,000
Actual billable rate per hour       $820                   $205
Budgeted billable rate per hour $800                    $210
Variance in price                           $20                       ($5)
Sales price variance            $104,000            ($110,000)      ($6,000)
Sales price variance = (Standard price - Actual price) * Actual billable hours
= ($800 - $820) * 5,200 + ($210 - $205) * 22,000
= $20 * 5,200 + ($5) * 22,000
= $104,000 - 110,000
= $6,000 U
Activity variance = (Actual billable hours - Standard billable hours) * Standard rate
= (5,200 - 5,000) * $800 + (22,000 - 20,000) * $210
= (200 * $800) + (2,000 * 210)
= $160,000 + 420,000
= $580,000 F
                                                   Partner                 Staff        Total 
Budgeted revenue             $4,000,000        $4,200,000   $8,200,000
Budgeted variable cost         1,875,000          2,400,000      4,275,000
Budgeted contribution       $2,125,000         $1,800,000   $3,925,000
Actual revenue                  $4,264,000         $4,510,000   $8,774,000
Actual variable cost              1,950,000          2,640,000    4,590,000
Actual contribution             $2,314,000         $1,870,000   $4,184,000
Quantity variance                 $189,000              $70,000     $259,000
Quantity variance = Budgeted contribution - Actual contribution
= $3,925,000 - $4,184,000 
= $259,000 F
Mix Variance:
Standard contribution margin  $425                  $90
Volume variance                         200                2,000
Mix variance =                     $85,000           $180,000