I want to calculate the missing values for the row New Department which has the following calculation which is based on the values in other rows.
| Department | Sub-Department | Col1 | Col2 | Month | Year |
| D1 | D1-1 | 3 | 6 | 12 | 2016 |
| D1 | D1-2 | 2 | 5 | 12 | 2016 |
| D2 | D2-1 | 4 | 3 | 12 | 2016 |
| D2 | D2-2 | 3 | 5 | 12 | 2016 |
| ALL | ALL | 50 | 8 | 12 | 2016 |
| New Department | New Sub-Department | 10 | Required value |
The calculation for the required field is as follows:
Required Value = ( (Col1 * Average of Col2)(for ALL) - ((Col1 * Average of Col2)(for D1-1) +(Col1 * Average of Col2)(for D1-2)+(Col1 * Average of Col2)(for D2-1)+(Col1 * Average of Col2)(for D2-2) ) )/ Col1(for New Department) = ((8*50) -((3*6)+(2*5)+(4*3)+(3*5)))/10 =(400-(18+10+12+15))/10 = 34.5
I have tried different approaches but did not get the desired result. Please suggest a possible way of achieving this. Please help.