Optimum production on Excel Solver

KylieR

New Member
Joined
Sep 27, 2018
Messages
2
Everything I input into Solver is giving me a not feasible solution. How should I be setting up a linear regression to find optimal production with the following data? I'm also unsure of how to add a promotion, any tips?

[TABLE="width: 677"]
<colgroup><col width="157" style="width: 118pt;"><col width="65" style="width: 49pt;"><col width="73" style="width: 55pt;"><col width="309" style="width: 232pt;"><col width="73" style="width: 55pt;"></colgroup><tbody>[TR]
[TD="class: xl83, width: 157"]Input Data (Demand)[/TD]
[TD="class: xl82, width: 65, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl82, width: 73, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl83, width: 309"]Input Data (Costs etc.)[/TD]
[TD="class: xl82, width: 73, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[/TR]
[TR]
[TD="class: xl83"] [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl83"] [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[/TR]
[TR]
[TD="class: xl78, width: 157"]Month[/TD]
[TD="class: xl79, width: 65"]Demand[/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl63"]Item[/TD]
[TD="class: xl64"]Cost[/TD]
[/TR]
[TR]
[TD="class: xl80, width: 157"]January[/TD]
[TD="class: xl84"] 10,000 [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl65"]Materials cost/unit[/TD]
[TD="class: xl66, bgcolor: silver"] $ 40 [/TD]
[/TR]
[TR]
[TD="class: xl80, width: 157"]February[/TD]
[TD="class: xl84"] 11,000 [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl67"]Inventory holding cost/unit/month[/TD]
[TD="class: xl71, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=99CCFF]#99CCFF[/URL] , align: right"]3.0[/TD]
[/TR]
[TR]
[TD="class: xl80, width: 157"]March[/TD]
[TD="class: xl84"] 15,000 [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl67"]Marginal cost of stockout/unit/month[/TD]
[TD="class: xl68, bgcolor: silver"] [/TD]
[/TR]
[TR]
[TD="class: xl80, width: 157"]April[/TD]
[TD="class: xl84"] 18,000 [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl67"]Hiring and training cost/worker[/TD]
[TD="class: xl68, bgcolor: silver"] [/TD]
[/TR]
[TR]
[TD="class: xl80, width: 157"]May[/TD]
[TD="class: xl84"] 25,000 [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl67"]Layoff cost/worker[/TD]
[TD="class: xl68, bgcolor: silver"] [/TD]
[/TR]
[TR]
[TD="class: xl80, width: 157"]June[/TD]
[TD="class: xl84"] 26,000 [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl67"]Labor hours required/unit[/TD]
[TD="class: xl73, bgcolor: silver, align: right"]2.0000[/TD]
[/TR]
[TR]
[TD="class: xl81, width: 157"]July[/TD]
[TD="class: xl84"] 30,000 [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl67"]Regular time cost/hour[/TD]
[TD="class: xl72, bgcolor: silver, align: right"]15.0[/TD]
[/TR]
[TR]
[TD="class: xl81, width: 157"]August[/TD]
[TD="class: xl84"] 29,000 [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl67"]Over time cost/hour[/TD]
[TD="class: xl71, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=99CCFF]#99CCFF[/URL] , align: right"]22.0[/TD]
[/TR]
[TR]
[TD="class: xl81, width: 157"]September[/TD]
[TD="class: xl84"] 21,000 [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl69"]Marginal subcontracting cost/unit[/TD]
[TD="class: xl70, bgcolor: silver"] [/TD]
[/TR]
[TR]
[TD="class: xl81, width: 157"]October[/TD]
[TD="class: xl84"] 18,000 [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[/TR]
[TR]
[TD="class: xl81, width: 157"]November[/TD]
[TD="class: xl84"] 14,000 [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl74"]Initial Workforce size[/TD]
[TD="class: xl76, align: right"]250[/TD]
[/TR]
[TR]
[TD="class: xl81, width: 157"]December[/TD]
[TD="class: xl84"] 11,000 [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl75"]Maximum overtime per worker per month[/TD]
[TD="class: xl77, align: right"]20[/TD]
[/TR]
[TR]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl74"]Starting inventory ('000s)[/TD]
[TD="class: xl76, align: right"]50[/TD]
[/TR]
[TR]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl82, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=F2F2F2]#F2F2F2[/URL] "] [/TD]
[TD="class: xl75"]Ending inventory ('000s)[/TD]
[TD="class: xl77, align: right"]50[/TD]
[/TR]
</tbody>[/TABLE]
 

Excel Facts

Waterfall charts in Excel?
Office 365 customers have access to Waterfall charts since late 2016. They were added to Excel 2019.
taking july demand of 30000 this is presumably based on historical data and might be anywhere between 27000 and 33000 ?
 
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