In this tutorial we'll use the Sum tutorial template included in the app. You can skip the first steps if you have already setup a collection.
![Summary](/img/screen/sum-tutorial/templates-sum.png)
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Create a new collection by tapping on the button and select Sum tutorial.
![Summary](/img/screen/sum-tutorial/templates-sum-2.png)
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In the next view, tap on Create.
![Summary](/img/screen/sum-tutorial/open-sum-tutorial.png)
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Open the Sum tutorial collection.
You can start here if you have already setup a collection.
![Summary](/img/screen/sum-tutorial/sum-tutorial-menu.png)
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Tap on the button (top right corner) and select Summary.
![Summary](/img/screen/sum-tutorial/sum-tutorial-add-entry.png)
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Tap on Add entry to add a new entry.
![Summary](/img/screen/sum-tutorial/sum-tutorial-integer.png)
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Select Integer number.
![Summary](/img/screen/sum-tutorial/sum-tutorial-open-entry.png)
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Open the newly created entry.
![Summary](/img/screen/sum-tutorial/sum-tutorial-edit-formula.png)
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Tap on Edit formula.
![Summary](/img/screen/sum-tutorial/sum-tutorial-empty-formula.png)
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The formula is empty, tap on the plus button to add a new function.
![Summary](/img/screen/sum-tutorial/sum-tutorial-add-function.png)
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Scroll down and select Sum field.
![Summary](/img/screen/sum-tutorial/sum-tutorial-formula-ready.png)
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The formula is now ready, tap on Save.
![Summary](/img/screen/sum-tutorial/sum-tutorial-entry-completed.png)
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Go back to Summary and check that the entry sum is correct.