Sales Price Calculator
Find the percentage discount and savings from an original (“was”) price and a sale (“now”) price.
Your inputs
Results
Discount
25.01%
- You save
- $30.01
- You pay this share of the original
- 74.99%
✓Exact calculation — rounded only for display
What this calculator does
Shops show “was” and “now” prices; this tells you the actual percentage off.
Formula and method
Discount = (was − now) ÷ was
Worked example
Calculated by this tool with its default inputs:
Inputs
- Original (“was”) price: 120 (any currency)
- Sale (“now”) price: 89.99 (any currency)
Results
- Discount: 25.01%
- You save: 30.01
- You pay this share of the original: 74.99%
How to read the results
Compare the real discount with the advertised one.
Assumptions and limitations
- A “was” price may not reflect what the item usually sold for.
Questions
How much off is 89.99 from 120?
About 25 %.
Methodology and verification
- Result type
- Exact mathematical calculation (rounded only for display)
- Formula version
- 1.0
- Automated verification
- 3 reference and validation test cases, checked against independently computed values. The site cannot be built if any of them fail.
- Editorial review
- Awaiting human editorial review. The explanation was drafted with AI assistance; the formula and examples are verified by the automated tests above.
Privacy
Everything you enter is calculated in this browser and is not sent to Numerith or anyone else. Inputs are added to a share link only if you choose to include them. Privacy policy