Bottom N not working as expected

[Jos13]

Hi Team,

I have the following tables

City

Sales

In this example only 3 cities(city 1 through city 3) have sales.

I created a measure to calculate the bottom 2 cities based on sales as follows;

Bottom Cities =
CALCULATE (
[Total Sales],
TOPN ( 2, ALL ( CityTable[City] ), [Total Sales], ASC ),
VALUES ( CityTable[City] )
)

When I drag this measure to the chart I get a blank visual.
I created a calculated table as follows 

The measure I created finds cities 4 and 5 as the bottom 2 cities, I want to exclude these 2 cities and show City 3 & City 2 as the bottom 2 cities. 
What changes should I do in the measure to get the correct results?

Please help

[Jihwan_Kim · Accepted solution]

Hi, @Jos13 

Please try the below measure.

Bottom Cities =

CALCULATE (

[Total Sales],

TOPN ( 2, FILTER(ALL ( CityTable[City] ), [Total Sales]>0), [Total Sales], ASC ),

VALUES ( CityTable[City] )

)

Hi, My name is Jihwan Kim.

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