GROUP BY expression as a measure

^{Hi Anonymous ,}

^{Please follow these steps:}

^{(1) Create a new measure}

AVG = DISTINCTCOUNT('Table'[book_id])/DISTINCTCOUNT('Table'[user_id])

^{(2)Final output}

^{Best Regards,}

^{Gallen Luo}

^{If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.}