Spread Spend Based Between Dates

Roj47

Board Regular
Joined
May 4, 2011
Messages
65
Office Version
  1. 365
Platform
  1. Windows
Afternoon all and hope I find you well.

I have created a working sheet, but the management and user-friendliness are around 1 out of 10.
I am usually able to get cells to do what I need, but not in a space saving, tidy way and wondered if there is a simple solution to what I try to update quarterly.

---

Column A : A list of activities to do i.e. skim wall, paint wall, fit skirting etc...
Column B&C : Start date and End date
Column D : Networking days (to omit recognised holidays)
Column E : The cost of the activity i.e. skim wall may be £350
Column F : I place upfront costs i.e. plaster for £50

Bit of a jump now.

I have merged each activity cell into 1 cell from 4, so Skim wall referenced is A21:24.

Row 21 : This is the difference between start and end date (B-C)
Row 22 : This returns the start date of the whole project - Activity End date (Set date - C)
Row 23 : =IF(SUM(M21:M22)>-1,IF(M22<=0,1,0),0) Conditional Format to show the cell in Red if returns 1. This creates a bar chart to show The start date and end date.
Row 24: =IF(M15=1,IF($C13=M$5,$I13,($H13-$I13)/($F13-$D13)),0)
This places Column F's figure on the start date and then splits the remaining cost across the rest of the bar chart.

Ie The plaster was £350 across 11 days, so day 1 has £50 in and then £30 is spread across the remaining cells.
If it was 21 days it would be £50 and £15 spread.

This is cumbersome and hard to manage and in addition it is more realistic to have an S-Curve for the spend rather than an equal amount, so rather than the £30 across 10 days it would be more realistic to be 5, 5, 8, 10.... 7, 3, 1.

This is incredibly long winded for which I apologise, and would welcome guidance to a function to save time and how to have the S-Curve linked between 2 dates that move each quarter.

Thanking in advance for your time in reading and all assistance.

Roj
 

Excel Facts

Why are there 1,048,576 rows in Excel?
The Excel team increased the size of the grid in 2007. There are 2^20 rows and 2^14 columns for a total of 17 billion cells.

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