# The Blunder Solution

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#### Problem

Samantha was tasked with calculating the average monthly salaries for all employees in theย EMPLOYEESย table, but did not realize her keyboardโsย 0ย key was broken until after completing the calculation. She wants your help finding the difference between her miscalculation (using salaries with any zeros removed), and the actual average salary.

Write a query calculating the amount of error (i.e.ย actual โ miscalculated:ย ย average monthly salaries), and round it up to the next integer.

Input Format

Theย EMPLOYEESย table is described as follows:

Note:ย Salaryย is per month.

Constraints

• 1000 < Salary < 10^5

Sample Input

Sample Output

`2061`

Explanation

The table below shows the salariesย without zerosย as they were entered by Samantha:

Samantha computes an average salary ofย 98.00. Theย actualย average salary isย 2159.00.

The resulting error between the two calculations isย 2159.00 โ 98.00 = 2061.00. Since it is equal to the integerย 2061, it does not get rounded up.

## Solution โ The Blunder

##### MySQL Code
```SELECT CEIL(AVG(Salary)-AVG(REPLACE(Salary,'0','')))
FROM EMPLOYEES```

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