Returning $ values by start & finish dates only

[Matt]

Aim: Calculate weekly cost of all equipment using mobilisation (mob),
demobilisation (demob) and weekly rates.

Source data: Mob and demob dates only.

My spreadsheet currently looks like below (Date format eg Xmas = 25-12-08).
Dates shown are for end of week (Friday). Costs tally up in columns G, H and
I.

A B C D E F
G H I
1 Equip $/Mob $/Demob $/Wk Mob Demob 31-10 07-11
14-11
2 EWP 100 100 700 29-10 13-11 400
700 700
3 Fork 100 100 700 05-11 10-11 0
400 400
4
Totals 400 1100 1100

G3 = $100/mob + 3 days (3/7 x $700 = $300) = $400 total

I am looking for a formula to insert into G2, H2, I2, G3, H3 and I3 to
achieve the results shown. Formula needs to reference date entries in E2,
F2, E3 and F3. Any help would be appreciated. Thanks.

 

[Daniel.C]

In cell G2 :
=(G1-$E$2<8)*$C$2+((MIN(G1;$F$2)-MAX(F1;$E$2-1))*$D$2/7)+(G1>$F$2)*$C$2
to be pasted in H2, I2 and dragged downward as far as needed.
Regards.
Daniel

 

[Matt]

Thanks for the response Daniel.
Unfortunately it doesn't work. I copied and pasted your formula into G2 and
hit enter. Received error message and proposed correction changed ; to :
within your formula. I accepted this change and it still didn't work. I
have tried to solve this myself but to no avail. Any ideas?

 

[David Biddulph]

Rather than changing a semi-colon to a colon, try changing it to a comma.
(Semi-colon and comma are the alternatives for a list separator, depending
on the regional settings).

 

[Matt]

Thanks David but that doesn't fix it either. I think there is another issue
too where cell B2 isn't referenced anywhere within the formula. Any help
would be great.

 

[Daniel.C]

Try :
=(G1-$E$2<8)*$B$2+((MIN(G1,$F$2)-MAX(F1,$E$2-1))*$D$2/7)+(G1>$F$2)*$C$2
Have a look at :
http://www.filedropper.com/returningvaluesbystartfinishdatesonly_1
Daniel
Matt a formulé la demande :

 

[Matt]

Still doesn't work Daniel. Works OK for the columns as per my 1st post but
when you add extra dates in the columns to the right and then extend the
formula across, it returns wrong results. Results should equal 0 for all
additional columns. Any thoughts?

 

[Daniel.C]

Well it does work but you have to change the demob date.
Daniel

 

[Matt]

Daniel
I have worked out the required formula.

=IF(G$1-$E2>=0,IF(G$1-$E2<7,$B2,0),0)+IF(G$1-$E2>=0,IF(G$1-$E2<7,((G$1-$E2)+1)*((1/7)*$D2),0),0)+IF(G$1-$E2>7,IF($F2-G$1>0,(G$1-F$1)*((1/7)*$D2),0),0)+IF(G$1-$F2>=0,IF(G$1-$F2<7,($F2-F$1)*((1/7)*$D2),0),0)+(IF(G$1-$F2>=0,IF(G$1-$F2<7,$C2,0),0))

When this formula is pasted into cell G2 and copied across to H2, I2, J2 etc
it will add mob, demob and weekly costs as applicable depending on the start
and finish dates.