## Issue

```
select *,
(TotalDeaths/TotalCases)*100 as PercentDeath,
(TotalDeaths/population)*100 as DeathPercentPopulation
from ( select location,
population,
sum(newcases) as TotalCases,
sum(newdeaths) as TotalDeaths
from deaths
where continent is not null
group by location
) as newtable
order by DeathPercentPopulation desc
```

There several digits after decimal in "PercentDeath" and "DeathPercentPopulation" column. However I just want to display two digit after decimal. How can I do that without nesting this query again?

## Solution

You could use TRUNCATE

TRUNCATE(X,D)

Returns the number X, truncated to D decimal places. If D is 0, the

result has no decimal point or fractional part. D can be negative to

cause D digits left of the decimal point of the value X to become

zero.

Something like this:

```
select *,
TRUNCATE((TotalDeaths/TotalCases)*100,2) as PercentDeath,
TRUNCATE((TotalDeaths/population)*100,2) as DeathPercentPopulation
from ( select location,
population,
sum(newcases) as TotalCases,
sum(newdeaths) as TotalDeaths
from deaths
where continent is not null
group by location
) as newtable
order by DeathPercentPopulation desc
```

Or you could use `ROUND`

function.

The ROUND() function in MySQL is used to round a number to a specified

number of decimal places. If no specified number of decimal places is

provided for round off, it rounds off the number to the nearest

integer.Syntax :

ROUND(X, D) Parameter : This method accepts two parameters in the

syntax, as mentioned above and described below –X : The number which to be rounded. D : Number of decimal places up to

which the given number is to be rounded. It is optional. If not given

it round off the number to the closest integer. If it is negative,

then the number is rounded to the left side of the decimal point.

```
select *,
ROUND((TotalDeaths/TotalCases)*100,2) as PercentDeath,
ROUND((TotalDeaths/population)*100,2) as DeathPercentPopulation
from ( select location,
population,
sum(newcases) as TotalCases,
sum(newdeaths) as TotalDeaths
from deaths
where continent is not null
group by location
) as newtable
order by DeathPercentPopulation desc
```

Answered By – Ergest Basha

Answer Checked By – Marie Seifert (BugsFixing Admin)