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Author Topic: Simple Maths Question.  (Read 1036 times)

Simple Maths Question.
on: August 26, 2009, 10:00:39 AM
Excuse my ignorance, but I have a wee maths question.

I have a product that costs X to make, and I need to make 65% profit (for example), what do I need to sell my product for?

What would the formula thingy be for this?

Ta.  :stupid:
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  • Offline Rivkid

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Re:Simple Maths Question.
Reply #1 on: August 26, 2009, 10:09:27 AM
X x 1.65

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  • Offline bear

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Simple Maths Question.
Reply #2 on: August 26, 2009, 10:24:14 AM
What about distrobution  and stock-keeping ?
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  • Offline zpyder

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Re:Simple Maths Question.
Reply #3 on: August 26, 2009, 10:37:31 AM
Quote from: Rivkid
X x 1.65



Using the above formula, if you replace X with £100

100 x 1.65 = £165 = £65 profit, or 65%

So I agree :D

Never found this kind of equation a problem, but when you reverse them so you have a value, and then added 26% tax or something, ending up with a value like £133, I struggle to work out the original value. When we had a question like that in maths tests I saved them till the end and did trial and error, guestimating the original value and adding 26% tax, getting closer each time till I got it ><
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Simple Maths Question.
Reply #4 on: August 26, 2009, 10:57:52 AM
devide by the total percentage (so 126 in your example)
(to find out what 1% is)

then multiply by 100 (to get 100% again)

133/126*100= £105.56

:)
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  • Offline zpyder

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Re:Simple Maths Question.
Reply #5 on: August 26, 2009, 11:01:21 AM
That makes sense. Why couldnt it have made sense in my GCSEs? :(
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  • Offline bear

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Simple Maths Question.
Reply #6 on: August 26, 2009, 11:18:39 AM
X = Distro + Stock + Cost to make.

X x 1.65 =1.65X

add sales tax 1.65X x 1.26 = 2,079X

So if X is 100,  sale price including sales tax would be 207.9


and if you  have sale price including tax  lets say £200 you divide by 2.079 and get £95.374344301
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  • Offline Sam

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Simple Maths Question.
Reply #7 on: August 26, 2009, 16:04:39 PM
Quote from: knighty
devide by the total percentage (so 126 in your example)
(to find out what 1% is)

then multiply by 100 (to get 100% again)

133/126*100= £105.56

:)


Or just divide by 1.26
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Simple Maths Question.
Reply #8 on: August 26, 2009, 21:54:24 PM
I understand . . . I think. :)

Will give it a go tommorow, cheers.

Internal Master-Chef competitions suck, I didnt want to enter in the first place. :(
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Simple Maths Question.
Reply #9 on: August 26, 2009, 21:59:29 PM
Quote from: Sam
Or just divide by 1.26


yeah.... but my way makes it easier to understand what youre doing :p
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Re:Simple Maths Question.
Reply #10 on: August 28, 2009, 19:31:44 PM
Quote from: zpyder
That makes sense. Why couldnt it have made sense in my GCSEs? :(


You werent as clever then.  :heehaw:
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  • Offline zpyder

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Re:Simple Maths Question.
Reply #11 on: August 28, 2009, 20:31:13 PM
Quote from: Walrusbonzo
Quote from: zpyder
That makes sense. Why couldnt it have made sense in my GCSEs? :(


You werent as clever then.  :heehaw:


tbh I look back on my youth and think "what the f**k was I doing". I think pre-16 I didnt really have a clue what was going on around me.
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