How to calculate average using power bi

Question

In power bi i have 2 table

Table 1 (Total no of seats) Venue 1 100 seats Venue 2 150 seats

Table 2 (No of seats used) Venue 1 40 seats Venue 2 75 seats

I need to calculate how to many seats used

ex (40/100) *100 = 40%

Can someone helps me

**Current database i can't join these table

Try to use average function did not work

Answer 1

Assuming your tables look like this:

Table 1:

Venue    | Total Seats
-----------------------
Venue 1  |         100
Venue 2  |         150

Table 2:

Venue    | Seats Used
----------------------
Venue 1  |         40
Venue 2  |         75

Create a relationship between Table 1 and Table 2 on field Venue, then you can create a measure:

Seat Utilisation = 
DIVIDE ( 
    SUM ( 'Table 2'[Seats Used] ),
    SUM ( 'Table 1'[Total Seats] ),
    BLANK()
)

See https://pwrbi.com/so_55470616/ for an example PBIX file