Adding a column which calculates % of the two other columns

[Gisela]

Hi, I am new at PowerBI and could not find an answer to this probably easy question.

I have the table above

I want to add a column which show the % of "Ttl rcvd new"/"Total sent"

"Ttl rcvd new" & "Total sent" are  from different excel sheets

I have tried to add a measure to calculate the % but 1/ I don't know where to add the measure 2/ i get an error or it just showed 100% for both.

How can I add the % column?

Thank you,

Gisela