# Need to calculate an Average please!!

#### Ted210

##### New Member
Hello,

I hope someone can help!

I need to calculate an average for a questionnaire.
There is a scale of 1-10 about how much they liked a product (1 being not and 10 being liked it a lot)

Now I need an average of what the people said. (e.g. 6.7)

Example:

 1 2 3 4 5 6 7 8 9 10 56 88 101 97 100 59 62 39 13 18

<colgroup><col span="10"></colgroup><tbody>
</tbody>

Is there a formula for this perhaps or a way to calculate it?

Thanks!

### Excel Facts

What is the shortcut key for Format Selection?
Ctrl+1 (the number one) will open the Format dialog for whatever is selected.
You could calculate he Mean Average using this:

Excel 2007
ABCDEFGHIJ
212345678910
35688101971005962391318
4
5
64.454976
Sheet4
Cell Formulas
RangeFormula
A6=SUMPRODUCT(A2:J2,A3:J3)/SUM(A3:J3)

Great thanks!!

That helps a lot!

If possible, we asked the people before and after a product trial how much they liked the product.

And I would need to calculate the percentage of how much their opinion shifted?

So for example as above take before trial average opinion was 4.45 and after it was 8.2

Any suggestions perhaps?

Thanks!

You could calculate he Mean Average using this:

Excel 2007
ABCDEFGHIJ
212345678910
35688101971005962391318
4
5
64.454976

</tbody>
Sheet4

Worksheet Formulas
CellFormula
A6=SUMPRODUCT(A2:J2,A3:J3)/SUM(A3:J3)

</tbody>

<tbody>
</tbody>

Sorry Firefly..... but doesnt seem to work with me.

=SUMPRODUCT(E26:N26,E27:N27)/SUM(E27:N27)

And I get
 0.0885

<colgroup><col width="48"></colgroup><tbody>
</tbody>

What do the separate parts of the formula return for you ie:

=SUMPRODUCT(E26:N26,E27:N27)

and

=SUM(E27:N27)

Sorry I found the problem and now it works perfectly! So thanks a lot!

Any suggestions perhaps because of the percentage?

thank you!

Well, from my point of view, the % change would be calculated from:

=(End% Less Start%)/Start%

or

=(8.2 - 4.45)/4.45

Great! Thank you for all your help Firefly!!

You're welcome

Replies
6
Views
308
Replies
2
Views
354
Replies
3
Views
408
Replies
8
Views
350
Replies
8
Views
254

1,207,094
Messages
6,076,549
Members
446,212
Latest member
KJAYPAL200

### We've detected that you are using an adblocker.

We have a great community of people providing Excel help here, but the hosting costs are enormous. You can help keep this site running by allowing ads on MrExcel.com.

### Which adblocker are you using?

1)Click on the icon in the browser’s toolbar.
2)Click on the icon in the browser’s toolbar.
2)Click on the "Pause on this site" option.
Go back

1)Click on the icon in the browser’s toolbar.
2)Click on the toggle to disable it for "mrexcel.com".
Go back

### Disable uBlock Origin

Follow these easy steps to disable uBlock Origin

1)Click on the icon in the browser’s toolbar.
2)Click on the "Power" button.
3)Click on the "Refresh" button.
Go back

### Disable uBlock

Follow these easy steps to disable uBlock

1)Click on the icon in the browser’s toolbar.
2)Click on the "Power" button.
3)Click on the "Refresh" button.
Go back