+ Reply to Thread
Results 1 to 4 of 4

Using a goal seek to make 2 cells match a number

  1. #1
    Registered User
    Join Date
    03-13-2015
    Location
    Brussels
    MS-Off Ver
    365
    Posts
    2

    Using a goal seek to make 2 cells match a number

    Hi Everyone,

    I am doing a school exercise on how to calculate the optimal volume of a product to have a fixed margin, where the price and COGS are depended on the volume.
    I wanted to tackle this through a top down + bottom up approach by then having goals seek trying to match the 2 prices by changing the volume, but I didn't succeed to do a double goal seek, can anyone help? (I enclosed the example)

    https://we.tl/9wBojww5Hb



    Thanks!

  2. #2
    Forum Guru
    Join Date
    04-13-2005
    Location
    North America
    MS-Off Ver
    2002/XP and 2007
    Posts
    15,803

    Re: Using a goal seek to make 2 cells match a number

    Users of this forum tend to prefer that you upload the file directly to the forum rather than an external filehosting site.

    IMO, Goal Seek is not robust enough to handle this kind of "two cells with two targets" kind of problem. 2 suggestions:

    1) Spend some time with the algebra of the problem and see if you can combine the equations into a single variable equation.

    2) Instead of Goal Seek, use Solver. Solver has more extensive algorithms that allow it to handle multiple decision variables and constraints. Solver help file: https://support.office.com/en-us/art...b-f63e45925040
    Quote Originally Posted by shg
    Mathematics is the native language of the natural world. Just trying to become literate.

  3. #3
    Registered User
    Join Date
    03-13-2015
    Location
    Brussels
    MS-Off Ver
    365
    Posts
    2

    Re: Using a goal seek to make 2 cells match a number

    Hi MrShorty,

    THank you for answer, I tried to upload it, but the tool didn't open, that's why I attache dit with file transfer.

    I have tried to combine the equations, but didn't succeed, same for solver, so if you have any tips I am very open to it!

  4. #4
    Forum Guru
    Join Date
    04-13-2005
    Location
    North America
    MS-Off Ver
    2002/XP and 2007
    Posts
    15,803

    Re: Using a goal seek to make 2 cells match a number

    The file uploader to this site can be problematic. To attach a file to a post:
    1) Click on "Reply to thread" or "Go advanced" to bring up the post editor window.
    2) Beneath the main post editor field should be a "manage attachments" link. Click on this link to bring up the file uploader.
    3) Upload your file, finish editing your post, then submit post.

    I do not understand you desired model. I think your sample file is going to require some more comments and discussion to understand exactly what you are trying to do. I would also suggest that you include in your post and/or your sample file your attempted Solver models (changing cell(s), target cell, constraints, etc.). That will help us better see what you are having difficulty with.

+ Reply to Thread

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Goal seek to see if I can reconcile a number
    By ClayatEDD in forum Excel General
    Replies: 1
    Last Post: 02-15-2017, 12:15 PM
  2. [SOLVED] Goal seek for two cells
    By YasserKhalil in forum Excel Programming / VBA / Macros
    Replies: 25
    Last Post: 05-23-2016, 07:17 PM
  3. [SOLVED] getting to a number using goal seek, maybe
    By ammartino44 in forum Excel General
    Replies: 4
    Last Post: 09-21-2015, 07:08 PM
  4. Changing the value in one cell to make two other cells equal (Goal Seek?)
    By Artie Fufkin in forum Excel Formulas & Functions
    Replies: 5
    Last Post: 08-30-2013, 10:37 AM
  5. Using goal seek to make a chart
    By AKK in forum Excel Programming / VBA / Macros
    Replies: 2
    Last Post: 07-23-2007, 09:46 PM
  6. [SOLVED] Goal Seek - Why make the PV negative?
    By Mytpoet67 in forum Excel General
    Replies: 1
    Last Post: 01-12-2005, 11:06 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Search Engine Friendly URLs by vBSEO 3.6.0 RC 1