S Curve / Bell Curve / Burn Rate Help

mcdavison1

New Member
Joined
Jul 2, 2018
Messages
1
I am looking to create a burn table for some new projects in our future pipeline. I have researched S curves, bell curves, and burn rate tables, but nothing is coming up with just what I need. For example:

Project X is going to be for $80M, and will last 72 months
Project Y is going to be for $20M, and will last 24 months
Project Z is going to be for $5M, and will last 6 months

I am looking to figure how much Revenue we will burn in month 1, 2, 3, .... 72.... for each of our projects. We want to have a ramp up period, and a ramp down period. A project with 6 months is obviously going to burn at a different rate than one that will last 72 months, and I am looking to create a table that I can reference, based on the varying projects' duration. We have about 100 different projects, with different duration periods. My problem with the Bell curve, was that I needed to calc a different standard deviation for each duration period, and was really struggling with it.

Any ideas on how I can create myself a table with burn schedules out for 72 (maybe more) months? The duration will be down left, and the months across the top, I think like this below. For example, a 6 month project will burn 5% in the first month, 15% in the second month, and so on til the final 6th month. Per below:

Duration 1 Month2 Month3 Month4 Month5 Month6 Month7 Month8 Month9 Month
0 Month0.00%
1 Month100.00%
2 Month50.00%50.00%
3 Month25.00%40.00%35.00%
4 Month10.00%30.00%35.00%25.00%
5 Month10.00%20.00%25.00%30.00%15.00%
6 Month5.00%15.00%20.00%25.00%25.00%10.00%
7 Month4.00%12.00%17.00%20.00%20.00%15.00%12.00%
8 Month3.00%7.00%11.00%12.00%20.00%20.00%17.00%10.00%

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