Math
Ratio simplifier
Simplify a two-number ratio and view its decimal relationship.
Calculators / Everyday / Shared deposit refund split
Shared deposit refund split calculator
Split a returned deposit in proportion to two original contributions.
On this page
Person A refund540
Person B refund360
Person A share60%
Calculator controls
How to calculate
Split a returned deposit in proportion to two original contributions.
Person A refund =
refund*a/(a+b)Person B refund =
refund*b/(a+b)Person A share =
100*a/(a+b) %Worked example
- Deposit refund received: 900
- Person A original contribution: 600
- Person B original contribution: 400
- Person A refund: 540
- Person B refund: 360
- Person A share: 60 %
Assumptions and limits
Assumes both people agree to proportional sharing of deductions. It does not allocate responsibility for damage or interpret a rental agreement.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Split a returned deposit in proportion to two original contributions. A 60/40 contribution ratio splits a 900 refund into 540 and 360. The shares always sum to the entered refund.
When this tool is useful
A 60/40 contribution ratio splits a 900 refund into 540 and 360. The shares always sum to the entered refund.
Understanding your inputs
| Input | Example |
|---|---|
Deposit refund received refund | 900 |
Person A original contribution a | 600 |
Person B original contribution b | 400 |
Frequently asked questions
What does this estimate leave out?
Assumes both people agree to proportional sharing of deductions. It does not allocate responsibility for damage or interpret a rental agreement.
How do I check the example?
Use the stated units and the formula below. Keep full precision until the final answer; change one input at a time to see its effect.