Forum Discussion
Calculating Difference from Previous Row
Hi, we have a table of data and results for each half term for a unique ID. Example table below - what I want to be able to find is the half termly changes in grade value between half terms (excl...
The "Half Termly Changes" column is what I need assistance with - I believe it could be a PREVIOUSROW function but being fairly new to PBI I am still trying to understand all of the Power BI Language/Calculations