What is 25 of 5500?
Understand the Problem
The question is asking for the calculation of 25 out of 5500, which typically implies finding what percentage or portion 25 represents of 5500.
Answer
The percentage that 25 represents of 5500 is $0.45\%$.
Answer for screen readers
The percentage that 25 represents of 5500 is $0.45%$.
Steps to Solve

Identify the formula for percentage
To find out what percentage 25 is of 5500, we will use the percentage formula:
$$ \text{Percentage} = \left( \frac{\text{Part}}{\text{Whole}} \right) \times 100 $$ 
Plug in the values
Substituting the values into the formula, where the part is 25 and the whole is 5500:
$$ \text{Percentage} = \left( \frac{25}{5500} \right) \times 100 $$ 
Calculate the fraction
First, calculate the fraction:
$$ \frac{25}{5500} = 0.0045454545... $$ 
Multiply by 100 to get the percentage
Now, multiply the result by 100 to convert it to percentage:
$$ 0.0045454545 \times 100 = 0.4545454545... $$ 
Round the result
Finally, round the result to two decimal places, which gives:
$$ 0.45% $$
The percentage that 25 represents of 5500 is $0.45%$.
More Information
This percentage means that 25 is a small fraction of the whole, 5500. Percentages are useful in everyday life when comparing parts to a whole, like in finance, statistics, and data analysis.
Tips
 Forgetting to multiply by 100 to convert to percentage.
 Not simplifying the fraction properly before multiplying.