Re: formula for this percentage MB
Let me give you some financial tips I have learned.
Biggest Mistake Many people make is to assume that +10% and -10% is the same thing.
Let Me Explain....
Lets say you buy something for $100 and you wanna sell it,
so you add 10% profit margin
10 % of $100 = $10 -(Now That was easy)
Result: $110
Now to get the things rolling faster, you decide to
sell it cheaper for the first month. let say at Cost
So you subtract the 10% again
Now according to your thoughts that
SHOULD still leave you with cost price
That Should get thing going well
ahhhh, but wait....what did you really do...
you took the Final Price: $110 - 10%
Result:
10% of $110 = $11
= $99
WTF....How can +10% be more than -10%
The thing is you should take care as to what value you apply the math to,
as 10% of 100 = 10, BUT 10% of 110 = 11
This is a simple example, and you might say...This will NEVER catch me...
Trust me, I have had very complex scenarios, where small mistakes like this
would have cost me thousands of dollars.
Rather use the following technique:
To add 10%
100 * 1.1 = 110
To Subtract 10% based on the resulting amount...
110 / 1.1 = 100
Good luck
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