Help with Formulas

[Guest]

I have a colleague that asked help with a formula - He would like to add 3
cells up and then multiply it by 20% and add that into the total

I tried =sum(a1:a3)+(a1:a3*.20)
but it didn't work

Can this be done in one cell or do you have to use two cells to calculate
this.

thanks
Shanny

 

[Guest]

=SUM(a1:a3)*1.20

 

[Guest]

OK, this will work 2 ways. You're looking for =sum(a1:a3)+sum(a1:a3)*.20

but, much easier as: =sum(a1:a3)*1.2.

hth

 

[Dave O]

Try this one:
=sum(A1:A3)*1.2

 

[Dana DeLouis]

Hi. One way:

=SUM(A1:A3)*(1+20%)

 

[PCLIVE]

As you can see, there are many ways to achieve the same result.
To support your original attempt method:

=SUM(A1:A3)+(SUM(A1:A3)*0.2)

Regards,
Paul

 

[Gord Dibben]

In one cell..................

=SUM(A1:A3)*1.2

Or if the 20% is variable and entered in B1...............

=SUM(A1:A3)+SUM(A1:A3)*B1


Gord Dibben MS Excel MVP