We are creating a report using two data set - one is SQL based and another is loaded from excel. Using layout editor we are trying to create a calculated column subtracting where col2 is from excel data set and col1 from sql data set, where in a cell in col2 the value is null and there is corresponding value in col1 but in the calculated col 3 the value is NULL this is wrong example below
col1 - col2 = col3
100 - NULL = NULL. This is wrong it should be 100.
150 - 50 = 100 - this is coming correctly