Could you please help me work through the calculation for this simple but tricky situation? As the below situation changes, I need to calculate BOND, which is 3% of the TOTAL BID PRICE (which includes the cost of the bond). A seemingly simple calculation that I can't work through without a circular reference. The situation I'm trying to solve for is if the Total Direct Costs and indirect costs increase - how do I calculate BOND on a spreadsheet? Note that the bond is calculated last, despite it being up earlier in the calculation.
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Tricky Calc without Circular References
- Thread starter cryan
- Start date
Here is a little more info on how the calculation is usually structured or laid out in Excel along with my question - the Direct costs are $2,301.29, the Bond is $98.76 (or 3% of the total) for a Subtotal of $2,400.06. Then the Overhead is 20.55% or $472.98 of the Subtotal, and the Fee is 15.11% of the Subtotal + the Overhead equalling $419.10 for a Total of $3.292.14. How do I calculate the Bond if the direct costs increase?
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dreid1011
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Perhaps this (formula in B8):
| Book1 | ||||||
|---|---|---|---|---|---|---|
| A | B | C | D | |||
| 2 | Total Direct Cost | 1800 | 0.539455 | |||
| 3 | ||||||
| 4 | Total DC Adds/Cuts | 0 | 0 | |||
| 5 | ||||||
| 6 | Total Indirect Cost | 544.52 | 0.163191 | |||
| 7 | ||||||
| 8 | Total Bond | 100.101 | 0.03 | |||
| 9 | ||||||
| 10 | Total Overall Cost | 2444.621 | 0.732646 | |||
| 11 | ||||||
| 12 | Total Overhead | 472.98 | 0.141751 | |||
| 13 | ||||||
| 14 | Total Profit | 419.1 | 0.125603 | |||
| 15 | ||||||
| 16 | Total Margin | 892.08 | 0.267354 | |||
| 17 | ||||||
| 18 | Total Bid Price | 3336.701 | ||||
Sheet1 | ||||||
| Cell Formulas | ||
|---|---|---|
| Range | Formula | |
| D2 | D2 | =B2/B18 |
| D4 | D4 | =B4/B18 |
| D6 | D6 | =B6/B18 |
| B8 | B8 | =(SUM(B2,B4,B6,B12,B14)/97)*3 |
| D8 | D8 | =B8/B18 |
| B10 | B10 | =SUM(B2:B8) |
| D10 | D10 | =B10/B18 |
| D12 | D12 | =B12/B18 |
| D14 | D14 | =B14/B18 |
| B16 | B16 | =SUM(B12:B14) |
| D16 | D16 | =B16/B18 |
| B18 | B18 | =SUM(B16,B10) |
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@d
This works great until I have to calculate Overhead and Profit. Overhead is 20% of the Total Overall Costs (which includes the bond) and Profit is 15% of Total Overall Cost + Overhead. That's where the circular reference starts to get me.
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No. Not the 20% and 15%.
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