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#1
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Determine Future Value to Meet Average
Hey all, Having a typical Monday morning here. I have what I assume is an easy question but I can't get my brain around it. I have a range of dates (A1:A22) for which I have a value (C1:C22 actuals formula reference to B1:B22) assigned to each. This data is input each day. In D1:D22 I have a value that represents a "goal" to reach for each day. This remains constant to meet the SLA with our client. What I would like to do is in E1:E22 is to have a formula that will determine what tomorrow's "goal" should be based on the Actuals in B if the constant in D remains the same for the remainder of the days. So, AVERAGE what actuals we have with the constant for all days except tomorrow and determine what tomorrow's goal should be to meet the AVERAGE for the total days. Hope that is clear. Any help is much appreciated. Thanks Steve -- SteveG ------------------------------------------------------------------------ SteveG's Profile: http://www.excelforum.com/member.php...fo&userid=7571 View this thread: http://www.excelforum.com/showthread...hreadid=551028 |
#2
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Determine Future Value to Meet Average
Hi, Steve.
If my understand was correct one way to do it is calc the difference between the dates and have the avg. you could try to use DATADIF, see the tip on this web page. http://www.bettersolutions.com/excel...D711511811.htm hope this helps regards from Brazil Marcelo "SteveG" escreveu: Hey all, Having a typical Monday morning here. I have what I assume is an easy question but I can't get my brain around it. I have a range of dates (A1:A22) for which I have a value (C1:C22 actuals formula reference to B1:B22) assigned to each. This data is input each day. In D1:D22 I have a value that represents a "goal" to reach for each day. This remains constant to meet the SLA with our client. What I would like to do is in E1:E22 is to have a formula that will determine what tomorrow's "goal" should be based on the Actuals in B if the constant in D remains the same for the remainder of the days. So, AVERAGE what actuals we have with the constant for all days except tomorrow and determine what tomorrow's goal should be to meet the AVERAGE for the total days. Hope that is clear. Any help is much appreciated. Thanks Steve -- SteveG ------------------------------------------------------------------------ SteveG's Profile: http://www.excelforum.com/member.php...fo&userid=7571 View this thread: http://www.excelforum.com/showthread...hreadid=551028 |
#3
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Determine Future Value to Meet Average
Marcelo, Thanks for the response. I think I may not have explained clearly enough. The dates themselves do not really matter, it is the values corresponding to those dates that I need to average to "predict" what the next value needs to be to maintain a certain service level. So if for days 1-5 of 22 my values average 150 and my service level agreement says I need to be at 80. Assuming that the rest of the days (excluding tomorrow) I maintain my level of 80, what does tomorrow's value need to be so the average of all 22 meets the service level of 80. Hope that makes more sense. Thanks, Steve -- SteveG ------------------------------------------------------------------------ SteveG's Profile: http://www.excelforum.com/member.php...fo&userid=7571 View this thread: http://www.excelforum.com/showthread...hreadid=551028 |
#4
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Determine Future Value to Meet Average
Hi Steve
Try this in B2, with your list starting in A1: =160-AVERAGE($A$1:A1) If you fill this down to B22 and enter your numbers in A1:A22, you'll see the required value change. If you want to hide the list until you reach the cell, try this in A2 and fill down: =IF(A1<"",160-AVERAGE($A$1:A2),"") Hope this helps. Andy. "SteveG" wrote in message ... Marcelo, Thanks for the response. I think I may not have explained clearly enough. The dates themselves do not really matter, it is the values corresponding to those dates that I need to average to "predict" what the next value needs to be to maintain a certain service level. So if for days 1-5 of 22 my values average 150 and my service level agreement says I need to be at 80. Assuming that the rest of the days (excluding tomorrow) I maintain my level of 80, what does tomorrow's value need to be so the average of all 22 meets the service level of 80. Hope that makes more sense. Thanks, Steve -- SteveG ------------------------------------------------------------------------ SteveG's Profile: http://www.excelforum.com/member.php...fo&userid=7571 View this thread: http://www.excelforum.com/showthread...hreadid=551028 |
#5
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Determine Future Value to Meet Average
Thanks Andy. That worked. Steve -- SteveG ------------------------------------------------------------------------ SteveG's Profile: http://www.excelforum.com/member.php...fo&userid=7571 View this thread: http://www.excelforum.com/showthread...hreadid=551028 |
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