Create IF measure summing one column based on another column

I need a measure that states:

If this Table1[company ID] = “1055”, then

Do this calculation:

Calculate(

    SUM(Table1[count]) * 0.50,Table1[PrdType] = "Unit Production")

Else do this calculation:

Calculate(

    SUM(Table1[count]),Table1[PrdType] = "Unit Production")

So basically one company production units are 50% and the rest are summed at 100%. 

My measure I tried is below:

ProdUnits = IF(Table1[company ID]="1055", Calculate(

    SUM(Table1[count])*0.50,Table1[PrdType] = "Unit Production"),
    Calculate(

       SUM(Table1[count]),Table1[PrdType] = "Unit Production"))

I get the following error:

! A single value for column ‘company ID’ in Table ‘Table1’ cannot be determined.  This can happen when a measure formula refers to a column that contains many values without specifying an aggregation such as min, count, or sum to get a single result.

Please note that company ID format is TEXT, not a number.  I don’t know how I would aggregate a TEXT even if the text is a number.  I cannot provide my tables.