Multiple What If Analysis

[KyBoy]

I'm just starting to learn about What-If Analysis. At a high level it seems to work for one scenario, but I was wondering if it would be able to calculate multiple what if scenario's a the same time.

What way would be able to calculate the CHANGE TO PEOPLE column where it would tell me what the PEOPLE column number would need to be at to get the delta to 0%.

The problem is that once you change the number of people in Group A, there are more/less total people and ever other group's Delta changes. How can you solve it all at once? Can you set a min/max for the number of people it can change?

Thoughts?
Thanks!

	People		Goal %		Current		Delta		Change to People
Group A	64		7.62%		11%		-3.64%		0
Group B	32		5.38%		6%		-0.25%		0
Group C	17		4.43%		3%		1.44%		0
Group D	53		5.78%		9%		-3.55%		0
Group E	17		6.70%		3%		3.71%		0
Group F	55		4.71%		10%		-4.98%		0
Group G	58		7.62%		10%		-2.59%		0
Group H	6		7.12%		1%		6.06%		0
Group I	2		1.80%		0%		1.45%		0
Group J	3		1.80%		1%		1.28%		0
Group K	4		1.80%		1%		1.10%		0
Group L	1		1.80%		0%		1.63%		0
Group M	62		5.44%		11%		-5.47%		0
Group N	59		5.38%		10%		-5.01%		0
Group O	9		5.48%		2%		3.90%		0
Group P	36		6.68%		6%		0.35%		0
Group Q	21		6.81%		4%		3.11%		0
Group R	22		5.91%		4%		2.04%		0
Group S	47		7.72%		8%		-0.55%		0
	568		100%		100%		0%

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[The_Macrotect]

Hi, I'm trying to understand the problem. it would be helpful to know which cells you enter data into and which cells use a formula to display the value. Can you attach a sample?

-Matt

 

[KyBoy]

Hi Matt,
My apologies.

I guess if i was to do a single what if analysis,
it would look like this

Set Cell: J2
To value: 0
By Changing Cell: L2

This would result in cell L2 equaling -20.69. So my question is that once it finds a value for Group A to satisfy a 0 delta, I would then look to solve Group B delta to 0 using the same process. However, when i do that it will then change Group A's Delta because it is changing the sum of the total heads.

	People		People		Goal %		Current		Delta		Change to People
Group A	64		=H4+R4		0.076245		=J4/$H$23		=L4-N4		-20.69284
Group B	32		=H5+R5		0.053817		=H5/$H$23		=L5-N5
Group C	17		=H6+R6		0.044302		=H6/$H$23		=L6-N6
Group D	53		=H7+R7		0.057783		=H7/$H$23		=L7-N7
Group E	17		=H8+R8		0.066996		=H8/$H$23		=L8-N8
Group F	55		=H9+R9		0.047063		=H9/$H$23		=L9-N9
Group G	58		=H10+R10		0.076167		=H10/$H$23		=L10-N10
Group H	6		=H11+R11		0.071167		=H11/$H$23		=L11-N11
Group I	2		=H12+R12		0.0180421052631579		=H12/$H$23		=L12-N12
Group J	3		=H13+R13		0.0180421052631579		=H13/$H$23		=L13-N13
Group K	4		=H14+R14		0.0180421052631579		=H14/$H$23		=L14-N14
Group L	1		=H15+R15		0.0180421052631579		=H15/$H$23		=L15-N15
Group M	62		=H16+R16		0.0544105789473687		=H16/$H$23		=L16-N16
Group N	59		=H17+R17		0.053786		=H17/$H$23		=L17-N17
Group O	9		=H18+R18		0.054824		=H18/$H$23		=L18-N18
Group P	36		=H19+R19		0.066831		=H19/$H$23		=L19-N19
Group Q	21		=H20+R20		0.068076		=H20/$H$23		=L20-N20
Group R	22		=H21+R21		0.059117		=H21/$H$23		=L21-N21
Group S	47		=H22+R22		0.077247		=H22/$H$23		=L22-N22
	=SUM(H4:H22)		=H23+R23		=SUM(L4:L22)		=SUM(N4:N22)		=SUM(P4:P22)

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[The_Macrotect]

Okay, I think I understand. What column does your data start in?

 

[KyBoy]

If you copy that table into cell G3, the table should align with the calculations