LET binds a name once and reuses it.
This commission calculation repeats the same total three times, and nobody can read it. In C2, use LET to bind the name total to SUM(B2:B7), then return total multiplied by 0.05.
Solve it on your own to keep the bonus. Each hint gets one step closer to the formula.
The same formula in the other shapes it takes at work.
This is the grid you start with. Cell references in the task — B6, C2 — point at the row numbers and column letters below.
| A | B | C | |
|---|---|---|---|
| 1 | Deal | Value | Commission |
| 2 | Alders renewal | 4200 | |
| 3 | Brant expansion | 3100 | |
| 4 | Corvo new | 5800 | |
| 5 | Delta renewal | 2400 | |
| 6 | Ekko new | 4900 | |
| 7 | Fenn expansion | 3600 |
LET is the closest Excel gets to a variable. It makes long formulas readable, and Excel evaluates each name once rather than every time it appears — so a formula repeating an expensive lookup five times gets faster as well as clearer.