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Any native english speakers?

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wraith808:
No it's not hacked! Why do you think it's spam?

It was just a web hosting link, here I uploaded it somewhere else:

-kalos (December 23, 2017, 07:02 PM)
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The prior link had porn on it which is why I agreed with IainB and deleted it.  Archive.is can't interpret this one, so I'd suggest approaching it with caution.

What is this one?  It would help if you'd include a description.

IainB:
OIC. The question is a bit confusing. It seems to be a an accounting question, except they have apparently confused it by using (misusing) the term "trend".
Generally speaking one will not necessarily be able to establish a significant statistical trend from just 2 (or 3) successive annual data-points. A significant trend usually only emerges over longer time-series data. Thus, to be correct, there are no "trends" in the data given in the example.

I would guess that what the question probably means is:
If the rate of growth or decline of the factors (costs and revenues) between year 1 and year 2 is repeated in year 3, then what would the tax be?

STEP 1: As a quick rule of thumb, I would initially calculate the percentage net rate of growth in pre-tax revenue, between year 1 and 2, and project the year 3 pre-tax revenue based on that percentage, then apply the 35% tax rate to the projected revenue, to arrive at a projected year 3 taxation figure.
The growth in pre-tax revenue would be a net factor of the sum of the rate of growth or decline of the factors (costs and revenues) between year 1 and 2.

STEP 2: You could show workings for a proof of that (i.e., checking the rule of thumb) by projecting the factors (costs and revenues) for year 3 and adding them up. This is usually good practice anyway (especially when using spreadsheets) since it checks your initial calculation (above) and will identify any errors made.

Having said that, you'd be surprised how many people omit such elementary checks to prove the figures calculated in spreadsheets. Reminds me of some years back in NZ when the published Treasury budgets were found to be embarrassingly out of whack by a factor of 10 because of a simple spreadsheet error, where a check of the type above would have easily identified the error prior to publication. Not a good look.    :-[

kalos:
No it's not hacked! Why do you think it's spam?

It was just a web hosting link, here I uploaded it somewhere else:

-kalos (December 23, 2017, 07:02 PM)
--- End quote ---

The prior link had porn on it which is why I agreed with IainB and deleted it.  Archive.is can't interpret this one, so I'd suggest approaching it with caution.

What is this one?  It would help if you'd include a description.
-wraith808 (December 23, 2017, 07:13 PM)
--- End quote ---

Ah sorry didn't know that, it's a simple maths question.

kalos:
OIC. The question is a bit confusing. It seems to be a an accounting question, except they have apparently confused it by using (misusing) the term "trend".
Generally speaking one will not necessarily be able to establish a significant statistical trend from just 2 (or 3) successive annual data-points. A significant trend usually only emerges over longer time-series data. Thus, to be correct, there are no "trends" in the data given in the example.

I would guess that what the question probably means is:
If the rate of growth or decline of the factors (costs and revenues) between year 1 and year 2 is repeated in year 3, then what would the tax be?

STEP 1: As a quick rule of thumb, I would initially calculate the percentage net rate of growth in pre-tax revenue, between year 1 and 2, and project the year 3 pre-tax revenue based on that percentage, then apply the 35% tax rate to the projected revenue, to arrive at a projected year 3 taxation figure.
The growth in pre-tax revenue would be a net factor of the sum of the rate of growth or decline of the factors (costs and revenues) between year 1 and 2.

STEP 2: You could show workings for a proof of that (i.e., checking the rule of thumb) by projecting the factors (costs and revenues) for year 3 and adding them up. This is usually good practice anyway (especially when using spreadsheets) since it checks your initial calculation (above) and will identify any errors made.

Having said that, you'd be surprised how many people omit such elementary checks to prove the figures calculated in spreadsheets. Reminds me of some years back in NZ when the published Treasury budgets were found to be embarrassingly out of whack by a factor of 10 because of a simple spreadsheet error, where a check of the type above would have easily identified the error prior to publication. Not a good look.    :-[
-IainB (December 23, 2017, 10:16 PM)
--- End quote ---

I think that's what I did. I projected the values to year 3.
There are two ways to project them, one by keeping the change percentage same and the othe by keeping the change same. I would go with the first, but I find something like 3.1 :/

IainB:
Yo no comprendo.
STEP 1 (calculate)
STEP 2 (proof)

...That's it.
It would seem to be an elementary accounting question.