Forum Discussion
Matt_P
6 years agoHelper I
Grouping / Aggregation
I have the data below and was wondering how to calculate the diff column which is previous qty minus current row quantitiy while ensuring ID is the same. Many thanks! ID RecordDate Accumila...
Greg_Deckler
6 years agoCommunity Champion
See my article on Mean Time Between Failure (MTBF) which uses EARLIER: http://community.powerbi.com/t5/Community-Blog/Mean-Time-Between-Failure-MTBF-and-Power-BI/ba-p/339586
Matt_P
6 years agoHelper I
Thanks, looked at EARLIER but im finding it difficult to apply... hence the post. 😁