Comments on: Business Analysis http://8020world.com Game Theory | Wargaming | Strategy | Modeling | System Dynamics Fri, 05 Nov 2010 00:52:38 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Neda Esfan http://8020world.com/best-practices/business-analysis/#comment-89 Neda Esfan Wed, 29 Oct 2008 11:01:08 +0000 http://jcandkimmita.info/jc/best-practices/business-analysis/#comment-89 Thank you so much. That was a huge help. Regards Neda Thank you so much. That was a huge help.
Regards
Neda

]]> By: Neda Esfan http://8020world.com/best-practices/business-analysis/#comment-87 Neda Esfan Mon, 27 Oct 2008 10:35:30 +0000 http://jcandkimmita.info/jc/best-practices/business-analysis/#comment-87 Hi Juan, I desperatly need your help. I have been searching the internet for hours and finally saw your website. I am helping my brother in his business and he needs to create an s curve in excel to predict his cost. He basically needs a formula to create an s curve for the following problem. For example if he wants to pay $15/hr to someone for walking up to 10 dogs but he will pay $17/hr if they walk 15 dogs and finally $20/hr if they walk 20 dogs. Any ideas how to write the formula in excel and make a s-curve chart? My gratitude and million thanks in advance. Neda Hi Juan,
I desperatly need your help. I have been searching the internet for hours and finally saw your website.
I am helping my brother in his business and he needs to create an s curve in excel to predict his cost.
He basically needs a formula to create an s curve for the following problem. For example if he wants to pay $15/hr to someone for walking up to 10 dogs but he will pay $17/hr if they walk 15 dogs and finally $20/hr if they walk 20 dogs.
Any ideas how to write the formula in excel and make a s-curve chart?
My gratitude and million thanks in advance.
Neda

]]> By: Juan Carlos Méndez-García http://8020world.com/best-practices/business-analysis/#comment-88 Juan Carlos Méndez-García Mon, 27 Oct 2008 04:28:31 +0000 http://jcandkimmita.info/jc/best-practices/business-analysis/#comment-88 @Neda Thanks for the message. For the problem you mention I'd personally use simply a step formulation just as you described ($15@1-10, $17@11-15, $20@16-20) if anything else because it is easier to communicate to the walkers. In Excel this would be just a simple =IF(AND(numdog>0,numdog< =10),15,IF(numdog<=15),17,...)) If you still would like to use an s-curve for the problem, you could use the technique described in this previous post: <a href="http://jcandkimmita.info/jc/2007/04/business/modeling-market-adoption-in-excel-with-a-simplified-s-curve/" rel="nofollow">http://jcandkimmita.info/jc/2007/04/business/modeling-market-adoption-in-excel-with-a-simplified-s-curve/" You would set the <b>saturation</b> to $5 (the difference between the low pay range and the high pay range), the <b>start of fast growth</b> around 7 or 8 (dogs walked) and the <b>takeover</b> parameter would not mean time, but dogs walked, and I would set it around 15 or 16. In the original curve the horizontal axis is time since introduction, and in your usage would be dogs walked. Finally, you would add $10 (the low pay range) to the formula result. Happy modeling! @Neda
Thanks for the message. For the problem you mention I’d personally use simply a step formulation just as you described ($15@1-10, $17@11-15, $20@16-20) if anything else because it is easier to communicate to the walkers. In Excel this would be just a simple =IF(AND(numdog>0,numdog< =10),15,IF(numdog<=15),17,...))

If you still would like to use an s-curve for the problem, you could use the technique described in this previous post: http://jcandkimmita.info/jc/2007/04/business/modeling-market-adoption-in-excel-with-a-simplified-s-curve/”

You would set the saturation to $5 (the difference between the low pay range and the high pay range), the start of fast growth around 7 or 8 (dogs walked) and the takeover parameter would not mean time, but dogs walked, and I would set it around 15 or 16. In the original curve the horizontal axis is time since introduction, and in your usage would be dogs walked. Finally, you would add $10 (the low pay range) to the formula result.

Happy modeling!

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