# Help with sum to work out a yearly percentage.

#### Nickvii

##### New Member
I'm having a trouble trying to work out a percentage growth.
basically, I have 14 cells in one row.
Jan to Dec- Total - Growth Percent.
I want to work the yearly growth of this row.
Example

Jan £10
Feb £10.50
March £11.20
April £14.20
May £13.60
June £12.30
July £13.60
August £13.95
Sept £14.20
Oct £13.99
Nov £12.99
Dec £14.60
Total £129.23
Yearly Crease % - this is the cell I can't figure out what excel sum in to work it out.

Any one able to help? So that every month I add a new figure like above it calculates the %.
Its prob really simple but I'm stumped

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Growth using what as a starting figure?

Hi Andrew, sorry January

Maybe:

=((B13/12)/B1)-1

Let me explain a little more. It will always use jan as the base figure.
What I am doing is creating a dashboard for my contracts stock take.

=((SUM(B\$1:B12)/ROWS(B\$1:B12))/B\$1)-1

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