A production runs on lists with numbers in them: budgets, shot lists, call sheets, gear. Drift puts the table inside the project it belongs to, and the arithmetic is the table’s job, not yours.
A budget in a spreadsheet app is a second place to keep in sync with the first. Here the shot list sits under the script it belongs to, in the same project, sharing its fate: share the project and the table comes along, finish the project and the budget is archived with it.
The foot of a column is computed from the rows above it, always, so the number a producer reads is never a stale paste. Set it once, Total in €, and every edit keeps it true.