Why every derived cell is a formula
That is the whole reason to give away workbooks rather than printable tables, and it is the one thing all eight have in common.
A sheet where the derived figure is typed teaches exactly the habit that makes reconciliation pointless: the moment one side of a check can be adjusted to agree with the other, it has stopped checking anything. Book stock has to compute, or it can always be nudged until the dip agrees.
The failure you cannot see
Overwriting a formula with a value is undetectable by looking at the sheet. It still adds up, the totals stay internally consistent, and the only symptom is that a check which used to catch things silently no longer does. If you share a file, share the original rather than a copy somebody has been working in.
Each one has a guide behind it
The template is the format; the guide is the argument for it. A spreadsheet nobody knows how to fill in is a spreadsheet nobody fills in, so every file here links to the guide that explains what each block is doing and why.
If you would rather work the numbers than the format, there are ten calculators as well, none of them gated either.
When a spreadsheet stops being enough
Worth saying plainly on a page giving them away. For a single outlet with one person doing the entry, these are a real answer and they cost nothing. They stop being one at four specific points, none of which is a revenue figure.
- More than one person entering. A spreadsheet has no concept of a role, so anybody who can open it can change last month.
- More than one outlet. Comparing two files by hand is a job; comparing eight is not one anybody does.
- Needing yesterday’s figures while standing on the forecourt. A file on an office computer is not available where the questions get asked.
- Wanting a trend rather than a figure. A variance is diagnostic as a series, and stitching thirty files together to see one is work nobody keeps doing.