From MEDS Wiki
In order to organise a successful MEDS event, the numbers should add up. To help planning and avoid financial disasters, there is a template that can/should be used while planning and even before proposing an event.
To use it, go to File > Save a copy, save the sheet to your own Google Drive and edit it. The tool can be found here: Google Sheet
The second sheet in the workbook contains an extensive guide how to use it properly.
The document is currently owned by Network Management in case you have suggestions for changes.