DAX SUM IF > 0

[Anonymous]

I have a column with negative and positive numbers. I use the formula below but when comparing the output to a 'manual' check of the column, the outputs are different. 

JobToAttAccepElapsedTime:=CALCULATE(SUM(FF_August_Dataset[JOB_TO_ATT_ACCEP_ELAPSED_TIME]),FF_August_Dataset[JOB_TO_ATT_ACCEP_ELAPSED_TIME]>0)

Formula output = 57,353

Manual check = 58,221

Here is link to sample data. Formula above is referencing column D (difference between dates in column C&B) in sample data file below. Note: column D was imported to data model and changed values to whole numbers format to represent HOURS

Sample Data

Appreciate any help.

[Greg_Deckler]

So are you saying that, for example, line five that has 97:09:01 in Column D is changed to 97 somewhere along the line?

[Anonymous]

Yes that is correct