| 2019 | 2019 | 2019 | 2019 | 2019 | 2019 | 2019 | 2019 | 2019 | 2019 | 2019 | 2019 |
| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| | Actual | Actual | Actual | Actual | Actual | Actual | Actual | Actual | Actual | Actual | Actual | Forecast |
Sales | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Cost | -50 | -50 | -50 | -50 | -50 | -50 | -50 | -50 | -50 | -50 | -50 | -50 |
I have a data set that looks like the above.
I want to create header names that concatenate the three first rows and then unpivot the data, to get something like this:
| 2019-Jan-Actual | Sales | 100 |
| 2019-Jan-Actual | Cost | -50 |
| 2019-Feb-Actual | Sales | 100 |
| 2019-Feb-Actual | Cost | -50 |
| 2019-Mar-Actual | Sales | 100 |
| 2019-Mar-Actual | Cost | -50 |
If you could help that would be great. Thanks