Hi! I have a simple gross margin calculation as set out below (i.e. Gross profit divided by sales). I would use a multi row formula to calculate it, but sometimes I have several months or even weeks of data presented in fields, which would mean that I have to write down a formula for each period separately. Is there a way to make it more dynamic? e.g. determine how many periods there are and then calculate a period specific gross margin at once?
Thanks a lot!
| Problem: | | | | | Desired outcome | | |
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| Name | 2015 | 2016 | 2017 | | Name | 2015 | 2016 | 2017 |
| Sales | 100 | 50 | 20 | | Sales | 100 | 50 | 20 |
| Gross profit | 30 | 30 | 5 | | Gross profit | 30 | 30 | 5 |
| | | | | | Gross margin | 0.3 | 0.6 | 0.25 |
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