The third argument flips the order, so the smallest value ranks 1.
You are ranking energy suppliers by annual cost, and the cheapest should be number 1. In C2:C7 give each supplier's rank.
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 | Supplier | Annual cost | Rank |
| 2 | Brightgrid | 1340 | |
| 3 | Coastal Power | 1185 | |
| 4 | Dynamo | 1410 | |
| 5 | Ecoflow | 1220 | |
| 6 | Fieldline | 1095 | |
| 7 | Gridwise | 1275 |
Without the 1, the dearest supplier would be ranked first, which is the opposite of the question. Times, costs, error rates and days late all rank ascending; sales, scores and margins rank descending.