Dynamic chart showing multiple values from multiple slicer selection

Hi,

I have a table:

Table1=

Date | Attribute | Value

I have 18 attributes, i am trying to have a dynamic chart that can show the sum of multiple attributes selected in the slicer.

I have found an article that gets me close, however when selecting multiple values on the slicer it sums the outcomes together instead of showing each individually.

https://www.fourmoo.com/2017/08/08/power-bi-how-disconnected-slicers-can-enrich-transform-your-analytics-data/#comment-5552

1) created a disconnected slicer with the 18 attributes.

2) created measure to sum values in table 1. 'Test' = SUMX(Table1, Values)

3) Created a measure as below, however my result is a summed total of more than one measure instead of two seperate values.

Distance (Selected) =
// This Variable is looking for the selected value from the Disconnected Slicer
// If nothing is selected then display "No Activity Selected"
VAR ActivitySelected = SELECTEDVALUE(Activity[Activity],"No Activity Selected")
// Now using an IF statement, we can then pass through the required values.
RETURN
// If nothing has been selected then return the entire distance
IF(ActivitySelected = "No Activity Selected",
        [Distance],
// Else if a value is selected the pass that value to the calculate below
CALCULATE(
            [Distance],
            Activities[Activity Type] =
 ActivitySelected
 )
)

 Any help is much appreciated :)