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## Use currency table to calculate rate to third currency

I have a table like the below

 Currency_Code Starting_Date Monthly Average Conversion Rate to GBP AED 01/11/2023 00:00 4.553310714 AED 01/10/2023 00:00 4.469232258 AED 01/09/2023 00:00 4.552056667 GBP 01/11/2023 00:00 1 GBP 01/10/2023 00:00 1 GBP 01/09/2023 00:00 1 AUD 01/11/2023 00:00 1.911332143 AUD 01/10/2023 00:00 1.916648387 AUD 01/09/2023 00:00 1.928933333 EUR 01/11/2023 00:00 1.147792857 EUR 01/10/2023 00:00 1.151916129 EUR 01/09/2023 00:00 1.160366667 SGD 01/11/2023 00:00 1.673132143 SGD 01/10/2023 00:00 1.665458065 SGD 01/09/2023 00:00 1.688866667 USD 01/11/2023 00:00 1.239860714 USD 01/10/2023 00:00 1.216941935 USD 01/09/2023 00:00 1.23949

I'm trying without luck to create a calculated column that would take the monthly to gbp rate and divide it by the monthly rate for USD within the relevant month, trying to do this without the "Calculate" funtion as I know that can cause performance issues. This would allow me to get the direct conversion for each into USD.

My table has been simplified for this question. The actual table would contain rates for each day throughout a month.

1 ACCEPTED SOLUTION
Super User

Try this calculated column:

``````GBP/USD Rate =
VAR vStartingDate = 'Currency'[Starting_Date]
VAR vUSDRate =
MAXX (
FILTER (
'Currency',
'Currency'[Currency_Code] = "USD"
&& 'Currency'[Starting_Date] = vStartingDate
),
'Currency'[Monthly Average Conversion Rate to GBP]
)
VAR vResult =
DIVIDE ( 'Currency'[Monthly Average Conversion Rate to GBP], vUSDRate )
RETURN
vResult``````

Proud to be a Super User!

2 REPLIES 2
Super User

Try this calculated column:

``````GBP/USD Rate =
VAR vStartingDate = 'Currency'[Starting_Date]
VAR vUSDRate =
MAXX (
FILTER (
'Currency',
'Currency'[Currency_Code] = "USD"
&& 'Currency'[Starting_Date] = vStartingDate
),
'Currency'[Monthly Average Conversion Rate to GBP]
)
VAR vResult =
DIVIDE ( 'Currency'[Monthly Average Conversion Rate to GBP], vUSDRate )
RETURN
vResult``````

Proud to be a Super User!

Frequent Visitor

Thank you very much!

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