Running Total (based on project size)

AnetaK,

Try this solution.

1. Create measures:

Total Cost = SUM ( FactProject[Cost] )

Cost % = 
VAR vNumerator = [Total Cost]
VAR vDenominator =
    CALCULATE ( [Total Cost], ALLSELECTED () )
VAR vResult =
    DIVIDE ( vNumerator, vDenominator )
RETURN
    vResult

Running Total = 
VAR vTopNumProjects = 10
--get all projects and their Cost % per the slicers/filters
VAR vBaseTable =
    ADDCOLUMNS (
        SUMMARIZE ( ALLSELECTED ( FactProject ), FactProject[Project] ),
        "@Cost%", [Cost %]
    )
--get the top N projects
VAR vTopProjects =
    TOPN ( vTopNumProjects, vBaseTable, [@Cost%] )
--add rank to the top N projects
VAR vRankedProjects =
    ADDCOLUMNS ( vTopProjects, "@Rank", RANKX ( vTopProjects, [@Cost%],, DESC ) )
--get the current project in the visual
VAR vCurrentProject =
    MAX ( FactProject[Project] )
--get the row in vRankedProjects for the current project
VAR vCurrentProjectRow =
    FILTER ( vRankedProjects, FactProject[Project] = vCurrentProject )
--get the rank for the current project
VAR vCurrentRank =
    MAXX ( vCurrentProjectRow, [@Rank] )
--get the rows that have a rank <= the current project's rank
VAR vTargetRows =
    FILTER ( vRankedProjects, [@Rank] <= vCurrentRank )
VAR vResult =
    IF ( HASONEVALUE ( FactProject[Project] ), SUMX ( vTargetRows, [@Cost%] ), BLANK() )
RETURN
    vResult

2. Create visual. Set the following visual filter: [Running Total] > 0. Sort the visual by [Running Total], ascending.