DAX to Calculate Room Utilization by Hour and Day

[seanguerrero]

Hi PBI Community,

I'm trying to calculate hourly % utilization with a sample of the following data points. I want to display a matrix visual that shows by day and hour, the percentage of rooms occupied (similar to the last image). I found this DAX on this site but couldn't get it to calculate correctly. I also need to ensure that the appropriate utilization is calculated for the hours inbetween "In" and "Out." For instance, if 'In' is 8am and 'Out' is 10am, I need to make sure that the DAX accounts for the 9am hour. 

Sorry -- new to DAX and looking to learn from the community.

_______________________

Measure Utilization =

var _occupied =
CALCULATE(COUNT('Source'[Guest]),
FILTER(ALLSELECTED('Source'),
'Source'[In]<=MAX('Table Time'[Time])&&'Source'[Out]>=MAX('Table Time'[Time])&&'Source'[Date]=MAX('Table Calendar'[Date])))

var _utilization =

DIVIDE(_occupied,20) // for 20 rooms

return
IF(_utilization = BLANK(),0,_utilization)

[amitchandak]

@seanguerrero , change var _occupied  like this and try

var _occupied =
Sumx( addcolumns( summarize( 'Source', 'Source'[Guest], source[Date] ) , "_1", calculate(COUNT('Source'[Guest]),
FILTER(ALLSELECTED('Source'),
'Source'[In]<=MAX('Table Time'[Time])&&'Source'[Out]>=MAX('Table Time'[Time])&&'Source'[Date]=MAX('Table Calendar'[Date])))), [_1])

[seanguerrero]

Thanks for the reply @amitchandak. I changed var _occupied per your recommendation. After charting Source[Date] and Table Time[Time], I'm getting zeros. Any help would be greatly appreciated! Thanks again!