cumulative total + missing data

Hi Ben_Schenck ,

Based on my testing, please try the following methods:

1.Create the simple table.

2.Create the new measure to calculate.

Cumulative SQL1% = 
VAR activ_ = SELECTEDVALUE('Table 1'[Activated])
VAR sq_ = SELECTEDVALUE('Table 1'[SQL])
VAR sql_1 = DIVIDE(activ_, sq_)
VAR calcu_ = CALCULATE(
    DIVIDE(activ_, sq_),
    FILTER(
        ALLSELECTED('Table 1'),
        'Table 1'[Timeline] <= MAX('Table 1'[Timeline])
    ))
RETURN
IF(
    calcu_ = 0,
    BLANK(),
    calcu_
)

3.Drag the measure into the Line chart.

4.The result is shown below.

Best Regards,

Wisdom Wu

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.