3/69 as a percentage is 4.35%. This tiny slice of a whole shows how a small number can still be expressed clearly as a percent.
The fraction 3/69 can be reduced to 1/23, but the decimal form stays the same. When you need to compare it to other values, using the percent makes it easier to read at a glance.
In everyday situations, you might see this percentage when dealing with tiny discounts, low probability events, or small parts of a larger group. Remember, 4.35% tells you exactly how big 3 parts are out of 69.