Enter the total contribution and an individual’s contribution into the calculator to determine the individual’s contribution ratio as a percentage of the total.

## Contribution Ratio Formula

The following formula is used to calculate the contribution ratio:

CR = (IC / TC) * 100

Variables:

- CR is the contribution ratio (%)
- IC is the individual contribution ($)
- TC is the total contribution ($)

To calculate the contribution ratio, divide the individual contribution by the total contribution and then multiply by 100 to get the percentage.

## What is a Contribution Ratio?

A contribution ratio represents the proportion of an individual’s contribution to the total contribution in a collective effort or financial context. It is often expressed as a percentage to easily understand the relative size of the individual’s contribution compared to the whole. This metric is useful in various scenarios, such as determining a member’s share in a group investment, calculating an employee’s contribution to a project, or assessing a donor’s impact in fundraising activities.

## How to Calculate Contribution Ratio?

The following steps outline how to calculate the Contribution Ratio.

- First, determine the total contribution (TC) in dollars.
- Next, determine the individual contribution (IC) in dollars.
- Use the formula CR = (IC / TC) * 100.
- Finally, calculate the Contribution Ratio (CR) in percentage.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem:**

Use the following variables as an example problem to test your knowledge.

Total contribution (TC) = $500

Individual contribution (IC) = $125