Conditional Color change of bubble in Scatter Chart in Qlikview?

Please follow the below Steps.

We usually have 4 expression in Scatter chart.

1.  First expression:       X coordinate for bubble position.
2. Second Expression:   Y Coordinate for bubble position.
3. third expression:  Size of your bubble based on expression  result numbers.
4. Fourth Expression:  Popup text when you scroll your cursor on Bubble.

In order to change the color based on some calculation, please follow below.

1.  Goto to first expression lets say X.
2. got to the backgroud color for first expression.
3. write your formula here as per the need.

feel free to reach to me for any concern.

cheers