Histogram : add a symbol/arrow/... based on a data

[Arkhos94]

I have an histogram showing the monthly result of an indicator

The indicator is a basic measure like this (date is a calendar table connected to my data table) : 

%usageMTD = TotalMTD([%usage],'Date'[Date])

%usage-Evolution = TotalMTD([%usage],'Date'[Date])-TotalMTD([%usage],previousmonth('Date'[Date]))

[%usage] is a measure

I'm showing %usageMTD as an histogram. I want to make it more visible if %usageMTD goes up or down : adding an arrow, some smiley... above the histogram bar

Can power bi do that ?

[Arkhos94]

hello @amitchandak  (and thanks again for your help)

Unless I'm mistaken, tooltip are only visible when you put your mouse pointer above the bar. I'm looking for something that will always be visible. Is it possible ?

[amitchandak · Accepted solution]

@Arkhos94 , I think you do it on tooltip by adding some unichar. I doubt on top of the bar

list of unichar :https://exceleratorbi.com.au/dax-unichar-function-power-bi/