Help with DAX for Scaled Score Matrix

Hi all, I've been trying to create a DAX measure to generate scaled score (wihout intermediate tables) for a competition but unsuccessful.

This is how the end matrix is required in Power BI

The forumula that is used to calcuate the scaled score:

Scaled Score for an Activity = ((Sum of the respective Team's Activity Mins) - (Minimum of Activity Mins across teams)) /

((Maximum of Activity Mins across teams) - (Minimum of Activity Mins across teams))

For e.g., Scaled Score of Team 3 for Cooking = (150-20)/(205-20) = 0.703

This is the source table, named Activity: This table contains the list of activities (with duration in mins) perfomed by each candidate.

This is the measure I wrote after a lot of research, but it isn't working as intended

Scaled Score = 
VAR MinValue =
    CALCULATE(
        MINX(
            SUMMARIZE(Activity, Activity[Team]),
            CALCULATE(
                SUM(Activity[Activity Mins])
            )
        )
    )
VAR MaxValue =
    CALCULATE(
        MAXX(
            SUMMARIZE(Activity, Activity[Team]),
            CALCULATE(
                SUM(Activity[Activity Mins])
            )
        )
    )
VAR TeamTotal =
    CALCULATE(
        SUM(Activity[Activity Mins]),
        ALLEXCEPT(Activity, Activity[Activity])
    )
RETURN
    DIVIDE(TeamTotal - MinValue, MaxValue - MinValue, 0)

 Any help in getting the DAX measure is appreciated. Thanks in advance!