# Charting question

#### intcon

##### New Member
Hello all!

I need to make a simple chart....a guy needs 148 windmills built, and he needs to know how many per week he has to build between september 15 and december 31....and then september 22 to december 31, etc. in one week increments...I am pretty sure this has got to be easy, but I'll be darned if I remember how it goes!

Carrie

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On 2002-09-01 11:19, intcon wrote:
Hello all!

I need to make a simple chart....a guy needs 148 windmills built, and he needs to know how many per week he has to build between september 15 and december 31....and then september 22 to december 31, etc. in one week increments...I am pretty sure this has got to be easy, but I'll be darned if I remember how it goes!

Carrie
I really hope that I understood your question:
Eli

reaaaaaaaalllly close! He needs a total of 148 windmills built....and he thinks he has from September 15- December 31 to do it, but they may move the dates to September 22 or September 29....(hows that for organized?)
Anyways, no more than 148 windmills, and no longer than December 31 to finish them all, but the starting date will be one of those three....(9/15, 9/22 or 9/29)
Sorry to be a pest!

Carrie
=)

The following method makes everything explicit, rather than doing it all in one formula:
Book6
ABCDE
1NumStartEndHowmanyfullweekshaveyougot?Rate/week
214822/09/200231/12/200214.0011
3
4
Sheet2

The first 3 columns should be self explanatory.

How many full weeks have you got?<i/>

=INT(DATEDIF(B2,C2,"d")/7)

This takes the number of days between your start & end, divideds it by 7 to get a number of weeks, then returns the integer portion of that number. i.e. 14.29 will return as 14. This is to provide a bit of 'slack' in the scheduling.

Rate / Week

=ROUNDUP(A2/D2,0)

Simple calculation of the number to produce divided by the weeks available, this time rounded up to give a full number, again to provide some slack.

Hope this helps.

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