THE NUMBERS, EXPLAINED
How to use this calculator.
Markup applies to parts plus labour; fixed service charge is added afterward. Taxes, warranty and repair feasibility are outside the quote.
Start with your inputs
Enter repair parts cost (currency), labour stage times (minutes), labour rate (currency/hour), fixed service charge (currency), markup on parts and labour (%). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Repair parts cost (currency) | 20 |
| Labour stage times (minutes) | 15,30 |
| Labour rate (currency/hour) | 40 |
| Fixed service charge (currency) | 10 |
| Markup on parts and labour (%) | 25 |
A worked example
With the example inputs above, labour subtotal (currency) is 30. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Labour subtotal (currency) | 30 |
| Markup amount (currency) | 12.5 |
| Total repair quote (currency) | 72.5 |
How this is calculated
Labour subtotal (currency)
Multiply total labour hours by rate.
Markup amount (currency)
Apply supplied markup to parts and labour.
Total repair quote (currency)
Add marked-up parts and labour plus service charge.
Symbols and units
- a
- Repair parts cost (currency)
- b
- Labour stage times (minutes)
- c
- Labour rate (currency/hour)
- d
- Fixed service charge (currency)
- e
- Markup on parts and labour (%)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions and limits
Markup applies to parts plus labour; fixed service charge is added afterward. Taxes, warranty and repair feasibility are outside the quote.
Calculations use the values you enter. Blank or invalid inputs show an error instead of silently substituting zero. Results are displayed to useful precision; calculations retain the underlying numeric precision.
Questions about this tool
What does the result tell me?
Labour subtotal (currency); Markup amount (currency); Total repair quote (currency). The result applies to the method and inputs described above. Check the units and assumptions before using it in a decision.
Why might another calculator differ?
Differences in units, rounding, timing or model definitions can produce different answers. Compare the input definitions and the method, rather than only the final number. For this tool: Markup applies to parts plus labour; fixed service charge is added afterward. Taxes, warranty and repair feasibility are outside the quote.
Are my inputs stored or sent to AI?
Calculations on this page happen in your browser. The separate AI question finder sends its submitted conversation to OpenAI; these calculator fields are not sent. Favourites and recent tool names are stored locally. A shared link contains the inputs you choose to include.
Further reading
OpenStax Prealgebra 2e — arithmetic and proportions ↗
Background reading; this does not imply endorsement or independent review of SumFizz.
Review status
Software example and browser checks are recorded in our quality report. No external expert review is claimed. Created with coding assistance; calculations run as ordinary browser code.
Read the quality report →