Maths brain fade - ...
 

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[Closed] Maths brain fade - geometric series

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 IHN
Posts: 19694
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Topic starter
 

I have a starting value - let's say 50k (A)
I have a target value - let's say 300k (B)
I have a number of months - let's say 12 (C)

I'm trying to work out the monthly growth rate (as a %age) that is required for A to grow to B over the period C. My GCSE maths was a long time ago and I'm suffering brain fade. Help me out with the formula I need...


 
Posted : 28/07/2020 10:40 am
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300/50 = 6

6^(1/12) = 1.16103667237

About 16%

(B/A)^(1/C)-1

I pray I’ve not made a blunder here, as I shall never live it down.


 
Posted : 28/07/2020 10:46 am
Posts: 24498
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(B/A)^(1/C)

In your example, 1.16103 or grow 16% each month approx

Assuming it grows on a monthly basis.


 
Posted : 28/07/2020 10:49 am
 IHN
Posts: 19694
Full Member
Topic starter
 

Awesome, thanks.


 
Posted : 28/07/2020 10:59 am

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