Excel Average Calculation Glitch

earthworm

Well-known Member
Joined
May 19, 2009
Messages
760
Office Version
  1. 2019
  2. 2016
Platform
  1. Windows
I have a below data

Month 1,056,244.83Actual RateCompleted Tenor RateActual Rate ProfitCompleted Tenor ProfitRate DifferentialDifferential RateNew Profit
May-2017135.40%4.29% 2,031.46 1,613.881.08502410%4.31% 1,623.28
Jun-2017305.22%4.15% 4,531.72 3,602.811.08502410%4.13% 3,589.76
Jul-2017315.24%4.15% 4,700.72 3,722.901.08502410%4.15% 3,727.37
Aug-2017315.23%4.14% 4,691.75 3,713.931.08502410%4.14% 3,718.39
Sep-2017305.24%4.15% 4,549.09 3,602.811.08502410%4.15% 3,607.13
Oct-2017315.22%4.14% 4,682.78 3,713.931.08502410%4.13% 3,709.42
Nov-2017305.22%4.14% 4,531.72 3,594.131.08502410%4.13% 3,589.76
Dec-201755.22%4.14% 755.29 599.021.08502410%4.13% 598.29
30,474.54 24,163.4124,163.41

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I want the result of 24,163.41 by applying that particular number that can subtract or add the actual rates to recalculate the profit which when added can lead to 24,163.41 . Unfortunately i tried the average formula between two rates subtract them and then apply the formula = average of actual rates minus average of completed tenor rates = -1.08625% . However when this difference is applied to all actual rates the total profit does not reconcile with the amount resulting with an answer of 24,156.28 .

Hence to achieve my answer of 24,163.41 i manually tried hit and try logic to achieve the result . Please advice why there is difference between the two answer . I am lost. I need to automate the difference of 1.0850241% through available actual rate and last completed tenor rates .

After the month are the number of days example : 13 , 30 , 31 etc

Below is the sample file for easy understanding.

https://app.box.com/s/ozrdc7ycpvo25khgxs02p7nuv1ek01zf
 
Last edited:

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I finally found the answer below is the accurate logic

(Required Profit on completed tenor / amount / Total Number of days *365) - (
(Required Profit on Actual tenor / amount / Total Number of days *365)

The difference between two rates is the actual answer :cool:



/ = Drivide
* =Multiply
( = Brackets
- = Minus
 
Last edited:
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