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## How to do simple sums with variable values?

So I have a flow to analyse results from a quiz on MS FORMs.

I've got variables set up for the number of questions and the score.  I want to email the person with their results and their percentage score.

I cannot figure out how to multiply or divide the values held within the variables so I have a percentage.

I may be going about this in completely the wrong way if so let me know.

2 ACCEPTED SOLUTIONS

Accepted Solutions
Most Valuable Professional

Hi @Anonymous ,

You can use mul(), div() and other available functions to perform math operation. i would like to see what are doing to help you further.

i would suggest you to use compose action to perform there operations with your variable.

Like following expression multiple my variable with 10.

mul(10,variables('MyVar'))

Thanks
Community Support

Hi @Anonymous,

You could initialize an integer variable named Score, then create multiple conditions to increase the Score by using the Increment variable action if the answer is correct, here I have 4 questions, so it has 4 conditions.

Then use the expression to divide the Score and Total score, then convert it into a percentage, my total score is 100, for example:

``concat(string(mul(div(float(variables('Score')),float(100)),100)),'%')``

Best Regards,
Community Support Team _ Lin Tu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

4 REPLIES 4
Super User

Hello @Anonymous

Please, have a look at the following threads:

You can also have a look at math functions reference guide: https://docs.microsoft.com/en-us/azure/logic-apps/workflow-definition-language-functions-reference

Hope it helps!

Ferran

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Community Champion

Hi!

you have initialized variables of type either integer or float, right?

All you need to use is to work with math WDL functions by means of expressions

math WDL functions documented here:

https://docs.microsoft.com/en-us/azure/logic-apps/workflow-definition-language-functions-reference#m...

How to add expressions explained here:

https://flow.microsoft.com/es-es/blog/use-expressions-in-actions/

Hope this helps

Did I make your day? If so, mark my response as 'Solution' !!!

También escribo sobre Power Automate en este Blog y en Twitter

Most Valuable Professional

Hi @Anonymous ,

You can use mul(), div() and other available functions to perform math operation. i would like to see what are doing to help you further.

i would suggest you to use compose action to perform there operations with your variable.

Like following expression multiple my variable with 10.

mul(10,variables('MyVar'))

Thanks
Community Support

Hi @Anonymous,

You could initialize an integer variable named Score, then create multiple conditions to increase the Score by using the Increment variable action if the answer is correct, here I have 4 questions, so it has 4 conditions.

Then use the expression to divide the Score and Total score, then convert it into a percentage, my total score is 100, for example:

``concat(string(mul(div(float(variables('Score')),float(100)),100)),'%')``

Best Regards,
Community Support Team _ Lin Tu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

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