Author Topic: Maths question  (Read 15019 times)

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Offline Snoopy

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Re: Maths question
« Reply #105 on: December 31, 2009, 03:13:13 PM »
That was the same VAT man that told me I could claim a refund on the VAT for the half pint of shandy that I had bought him but had to pay the VAT on the drink I bought myself at the same time................. They are from another planet.alien
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Offline GROWLER

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Re: Maths question
« Reply #106 on: December 31, 2009, 03:30:38 PM »
Post it with no stamp on  eveilgrin:

Yea, righ'on brother. ::)

Offline Snoopy

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Re: Maths question
« Reply #107 on: December 31, 2009, 03:43:30 PM »
Post it with no stamp on  eveilgrin:

Yea, righ'on brother. ::)

Not if you want "Proof of delivery" you can't and it's a foolish thing to post a VAT return without making sure you get a signature for it.
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Offline GROWLER

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Re: Maths question
« Reply #108 on: March 25, 2010, 12:50:42 PM »
Humblest apologies for bringing this popular thread up again like, but i need a little bit of simple help from you mathmaticians.

How do i work out the initial cost of my combined invoices BEFORE VAT?
So, to simplify that, for example, VAT received from customers that I've invoiced: ?153.75., what therefore was the invoice total BEFORE the VAT was added at 15%, and also 17.5% for invoices handed out after 01/01/10?

Offline GROWLER

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Re: Maths question
« Reply #109 on: March 25, 2010, 12:59:25 PM »
Not happy with the way I've worded that ^^

?1000 + VAT @15% = ?1150, yes?

Simple formula required for working out the price before VAT which is obviously ?1000.

Same required for the 17.5 % rate too.

Offline Snoopy

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Re: Maths question
« Reply #110 on: March 25, 2010, 01:03:34 PM »
If VAT was at 15% divide total by 115 and multiply the answer by 100. That should give you the price before VAT was added.

Same applies if VAT was at 17.5%. Divide by 117.5 and multiply by 100 to get the pre-vat cost.

So ?153.75 divided by 115 = ?1.3369565

?1.3369565 multiplied by 100 = ?133.69565

Double check
?133.69565 + 15% = ?153.74999 which rounds up to ?153.75

Same sum but @ 17.5%

?153.75 divided by 117.5 = ?1.3085106

?1.3085106 multiplied by 100 = ?130.85106

Double check
?130.85106 + 17.5% = ?153.74999 which rounds up to ?153.75
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Offline Barman

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Re: Maths question
« Reply #111 on: March 25, 2010, 01:05:12 PM »
I was just about to say that...  evil:
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Offline GROWLER

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Re: Maths question
« Reply #112 on: March 25, 2010, 01:05:45 PM »
Thank's Snoops. It's all coming back to me now from the last time I was VAT registered 6 years ago.

I'm sure MD will appreciate this too. lol:

Offline GROWLER

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Re: Maths question
« Reply #113 on: March 25, 2010, 01:06:27 PM »
I was just about to say that...  evil:

Yea, righ'on brother! noooo:

Offline Barman

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Re: Maths question
« Reply #114 on: March 25, 2010, 01:09:28 PM »
I was just about to say that...  evil:

Yea, righ'on brother! noooo:

I bloody was!  cussing:
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Offline GROWLER

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Re: Maths question
« Reply #115 on: March 25, 2010, 01:15:03 PM »
Hang on, no. It's not working.
I've got a total VAT figure only here, and I need to work out what the cost was before the VAT was added.

You're assuming I've got a figure that's the total INCLUDING VAT. I've only got the VAT total that I've received from my cussies.
« Last Edit: March 25, 2010, 01:17:08 PM by GROWLER »

Offline GROWLER

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Re: Maths question
« Reply #116 on: March 25, 2010, 01:16:03 PM »

Offline Barman

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Re: Maths question
« Reply #117 on: March 25, 2010, 01:17:27 PM »
Hang on, no. It's not working.
I've got a VAT figure only here, and I need to work out what the cost was before the VAT was added.

You're assuming I've got a figure that's the total INCLUDING VAT. I've only got the VAT total that I've received from my cussies.

Don't understand...

you said this: -

Quote
?1000 + VAT @15% = ?1150, yes?

Simple formula required for working out the price before VAT which is obviously ?1000.

Same required for the 17.5 % rate too.

Which is worked out the way Snoopy explained....
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Offline Nick

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Re: Maths question
« Reply #118 on: March 25, 2010, 01:18:53 PM »
The pain begins again  cussing:
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Offline GROWLER

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Re: Maths question
« Reply #119 on: March 25, 2010, 01:21:50 PM »
The pain begins again  cussing:

It's fun! lol:

OK.
I've got ?15 here (VAT received)
How do I work out what the invoice was before I added that VAT.

Same goes for another ?17.50 that I've got (17.5% VAT charged in this case)

Obviously the answers are simply ?100 in both cases, but what's the formula for working it out?
« Last Edit: March 25, 2010, 01:24:48 PM by GROWLER »