HELP : How to create new calculate column with an input value and measurement

[omar_moutallik]

hello , 
i have created calculated column which are : VAL 1 and VAL 2. My objective is to creat a calculated column ( new column ) as shown in pict.

thank you!!!!

[amitchandak · Accepted solution]

@omar_moutallik , Try a measure

sumX(filter(Table, [Date] <= earlier([Date])) [Val1] -[Val2] +300)

[omar_moutallik]

thank you