hi designer
I've a existing data set looks like below. some account has 2 years data, some not.
| Account | Year | Accounting Period | Sum_Base Amount |
| 6182303000 | 2020 | 01/2020 | 75000 |
| 6182303000 | 2020 | 02/2020 | 65000 |
| 6182303000 | 2020 | 03/2020 | 55000 |
| 6182304000 | 2021 | 01/2021 | 45000 |
| 6182304000 | 2021 | 02/2021 | 35000 |
| 6182304000 | 2021 | 03/2021 | 25000 |
| 6182201000 | 2020 | 01/2020 | 30000 |
| 6182201000 | 2021 | 01/2021 | 40000 |
| 6182201000 | 2020 | 02/2020 | 50000 |
| 6182201000 | 2021 | 02/2021 | 40000 |
| 6182201000 | 2020 | 03/2020 | 50000 |
| 6182201000 | 2021 | 03/2021 | 50000 |
and i want to transform to the below format.can anyone give me some ideas? thanks a lot
| Account | 01/2020 | 01/2021 | 01 Var | 02/2020 | 02/2021 | 02 Var | 03/2020 | 03/2021 | 03 Var |
| 6182303000 | 75000 | 0 | -75000 | 65000 | 0 | -65000 | 55000 | 0 | -55000 |
| 6182304000 | 0 | 45000 | 45000 | 0 | 35000 | 35000 | 0 | 25000 | 25000 |
| 6182201000 | 3000 | 4000 | 1000 | 5000 | 4000 | -1000 | 5000 | 5000 | 0 |