Application of variances to service companies

Variance computations for price, efficiency, spending, and mix variances are equally applicable to service companies, even though these businesses do not produce physical goods.

The underlying principles of variance analysis such as comparing actual performance to standards or budgets, remain relevant, as service companies also deal with costs, resource utilization, and revenue generation.

In general, output shifts from $\text{Units produced}$ to service units delivered, with standard hours allowed equal to $\text{actual service units}\times \text{standard hours per unit}$; flex the budget to actual volume first.

Price variances

In a service company, the price variance typically applies to the hourly rates charged to customers or the wages paid to service providers.

For example, on the revenue side, a price variance could arise if the actual billing rate charged to clients differs from the standard or planned rate due to discounts, promotions, or competitive pricing.

On the cost side, a labor price variance could result from paying higher or lower hourly wages to employees than budgeted, often driven by market conditions or shifts in workforce composition.

The quantity typically refers to the $\text{Actual hours serviced}$ when comparing the actual rate charged (or paid) to the standard rate.

Watch the sign: actual − standard. Billing above standard is favorable; wage above standard is unfavorable. Favorable isn’t always good: cheaper staff can hurt quality.

Efficiency variances

The efficiency variance in services focuses on resource utilization, such as employee hours or machine usage.

$$\text{Labor efficiency variance}=(\text{actual hours}-\text{standard hours allowed})\times \text{standard wage rate}$$

A labor efficiency variance compares actual hours to the standard hours allowed for the services delivered, not to actual hours themselves (which would always be zero).

Spending variances

The spending variance evaluates overhead or operational costs, such as utilities, equipment, or administrative expenses, relative to the budget.

For service companies, this could include office rental or software subscriptions. On variable overhead, the spending variance is $(\text{actual VOH rate}-\text{standard VOH rate})\times \text{actual hours}$; on fixed overhead, it’s actual minus budgeted fixed overhead, with no hours involved - budgeted hours only set the fixed overhead rate and feed the production volume variance, covered later.

Mix variances

The mix variance applies when a service company offers multiple types of services, or staffs engagements with multiple labor grades, at different profit margins or rates.

For example, a consulting firm might analyze whether a shift in service mix (e.g., offering more low-margin training sessions instead of high-margin strategy workshops) affects overall revenue or profitability. Because margins differ by service line, the sales mix variance is measured using contribution margin per hour, not revenue alone.

A labor mix variance arises when the actual staff-hour blend (e.g., senior vs. associate) differs from the standard blend; the yield variance compares total hours to the standard allowed.

Example: Consulting firm variances

Standard: $200/hr billing, $80/hr wage, 200 hours allowed (50 jobs, 4 hrs each). Actual: 210 hours, billed $210/hr, paid $85/hr.

Revenue price: $(\$210-\$200)\times 210=\$2,100$ F. Labor rate: $(\$85-\$80)\times 210=\$1,050$ U. Efficiency: $(210-200)\times \$80=\$800$ U.

Answer: $2,100 F; $1,050 U; $800 U