| Cost Driver | Example of Use | Cost Impact | |-------------|----------------|--------------| | | Processing a loan application, claims form, or invoice | Data entry, document storage, postage | | Number of customer calls | Call center handling tech support | Staff salaries, phone system costs, training | | Minutes on call | Billing a client for legal or consulting advice | Professional time, recording storage | | Number of employees | HR department activities (payroll, benefits admin) | HR software licenses, recruitment fees | | Square footage | Rent, cleaning, security for an office floor | Facility overhead | | Number of software users | Licensing an accounting or CRM system | Per-seat software fees | | Number of support tickets | IT helpdesk resolving password resets | Helpdesk staffing, ticketing system cost | Real example: A law firm uses billable hours (a cost driver) to allocate secretarial and paralegal costs to each client case. 3. Logistics & Distribution Cost Drivers These apply to warehouses, shipping, and freight.
| Cost Driver | Example of Use | Cost Impact | |-------------|----------------|--------------| | | Running a CNC machine, injection molding machine | Depreciation, maintenance, electricity | | Direct labor hours | Hand-assembling electronics or furniture | Supervisor salaries, payroll taxes, breakroom costs | | Number of setups | Changing a stamping die between car part batches | Setup labor, lost production time, calibration | | Number of inspections | Quality control checks on circuit boards | QA staff, testing equipment, scrap disposal | | Kilowatt-hours (electricity) | Operating a heat treatment furnace | Utility bills | | Pounds of raw material | Steel used in forging auto axles | Material handling, storage, waste disposal | | Number of production runs | Baking different flavors of cookies on same line | Cleaning chemicals, changeover labor | Real example: A toy factory uses machine hours to allocate electricity costs. If one toy takes 2 hours and another takes 0.5 hours, the first pays 4× more electricity overhead. 2. Service & Office Cost Drivers These apply to banks, insurance, law firms, IT, and call centers. example of cost driver
| Cost Driver | Example of Use | |-------------|----------------| | | Hospital room, meals, laundry, nursing rounds | | Number of lab tests | Blood work, urinalysis, pathology slides | | Number of images | X-rays, MRIs, CT scans (affects radiologist time and film/storage) | | Minutes in surgery | Operating room time, anesthesiologist fees, sterilization | | Number of prescriptions | Pharmacy dispensing cost, bottle labels, pharmacist check | | Number of visits | Outpatient clinic overhead (front desk, waiting room) | Real example: A hospital uses patient days to allocate housekeeping costs. A 5-day stay pays 5× more than a 1-day stay. 5. Software & IT Cost Drivers For SaaS companies, internal IT, and cloud computing. | Cost Driver | Example of Use |