When distributing by amount, lines amounts are used to define the distribution proportions.
Two types exist:
- line amounts (only if Base On Lines in the additional amount definition is 'True');
- amounts distributed to the lines (only the ones which participate in the base amount of the current additional amount).
To define the proportion of line i, its coefficient is calculated as follows:
[ki] = [distributed to line i amount1] + [distributed to line i amount2] + ... + [distributed to line i amountm].
'amount1', 'amount2' ... 'amountm' are the additional amounts to which you add the current additional distributed amount (the amounts listed in its definition in the Document Amount Type Dependencies panel).
If there are no such amounts, thеn in this initial calculation, you have [ki] = 0.
If Base On Lines is 'True' (in the additional amount), the line amount is added to the initial value for [ki]:
[ki] = [ki] + [line i amount].
This is how each line coefficient is calculated.
Тhe distribution is performed as usual, except for when the amount [S] is 0 and the additional amount is calculated as a percent.
In this case, the amount is distributed equally throughout the lines, and for each line, the calculation is performed like this:
[line i distribution] = ROUND([ki] * [Input Percent], [Round Scale).
If a percent is used for the additional amount calculation, it may be used for the calculation of the distributed amount for each line (to multiply the percent by [ki], which is the base amount only for the i line).
You may avoid the disadvantage of even distribution, but the amount distributed to a line may not be equal to the input percent. This is a huge problem for things like VAT.
Example 1:
There are the following additional amounts:
-
Corporate discount:
- Input Percent: -3%;
- Distributed By: Amount;
- Round Scale: 2;
- Base On Lines: True.
-
Eastern bonus:
- Distributed By: Amount;
- Round Scale: 2;
- Input Amount: -10 EUR.
-
VAT:
- Input Percent: 20%;
- Distributed By: Amount;
- Round Scale: 2;
- Base On Lines: True;
- in the Document Amount Type Dependencies panel, VAT is also applied on the Corporate discount and Easter bonus;
The document has two lines: line \#10 for 150 EUR and line \#20 for 40 EUR.
Percent value calculation explains how the additional amounts are calculated:
[Corporate Discount] = -5.70 EUR
[Eastern Bonus] = -10 EUR
[VAT] = 34.86 EUR
For the distribution of corporate discount, there are the following coefficients:
[k1] = 150 and [k2] = 40 (only the base line amounts are taken into account)
The [Corporate Discount] is distributed in 150:40 ratio as follows:
[Corporate Discount for line #10] = -5.70 EUR * 150 / 190 = -4.50 EUR;
[Corporate Discount for line #20] = -5.70 EUR * 40 / 190 = -1.20 EUR.
For the next amount - 'Easter bonus' - the distribution is in the same 150:40 ratio. The result is:
[Easter Bonus for line #10] = -10 EUR * 150 / 190 = -7.894736842105263 EUR ~ -7.89 EUR;
[Easter Bonus for line #20] = -10 EUR * 40 / 190 = -2.105263157894737 EUR ~ -2.11 EUR.
For the last additional amount, the coefficients are different. The distributed amounts from the other additional amounts have to be added to the line amounts. The coefficients are as follows:
[k1] = [Corporate Discount for line #10] + [Easter Bonus for line #10] + [line amount for line #10] = -4.5 + -7.89 + 150 = 137.61; [k2] = [Corporate Discount for line #20] + [Easter Bonus for line #20] + [line amount for line #20] = -1.2 + -2.11 + 40 = 36.69.
The VAT distribution is as follows:
[VAT for line #10] = 34.86 EUR * 137.61 / 174.3 = 27.522 EUR ~ 27.52 EUR;
[VAT for line #20] = 34.86 EUR * 36.69 / 174.3 = 7.338 EUR ~ 7.34 EUR.
Example 2:
There are 20% VAT and three document lines - #10 with 100 EUR, #20 with -30 EUR and #30 with -70 EUR.
In this case, VAT is 0 EUR, but it's inappropriate to distribute 0 EUR on each line, no matter what the coefficients are. By rule, each separate line must have nonzero VAT. Even if for some reason the VAT is not equal to 0, then it shouldn't be distributed equally throughout the lines (as it will be, if you distribute by quantity and have [S] = 0). The amounts on each line are different.
This is why a specific calculation of the distributed amounts is applied:
[VAT for line #10] = 100 EUR* 0.2 = 20 EUR;
[VAT for line #20] = -30 EUR * 0.2 = -6 *EUR*;
[VAT for line #30] = -70 EUR * 0.2 = -14 *EUR*.
Note
There's a specific case where the additional amount is distributed by amount.
If some lines/coefficients in the document are positive and others negative, as is described in Percent value calculation, except the total amount of the additional amount, there are also two subtotals - positive amount/part and negative amount/part. The amount distribution is performed in two stages: first, the positive subtotals are distributed among the lines with positive amounts and then, the negative subtotal is distributed among the lines with negative amounts.
Example 3:
There's an additional amount VAT with input percent 20% and three document lines:
line #10 with amount of 74 EUR, line #20 with amount of 26 EUR and line #30 with amount of -45 EUR.
The VAT amount is 11 EUR and the the subtotals are [positive VAT] = 20 EUR and [negative VAT] = -9 EUR.
The 20 EUR are distributed on line #10 and line #20 in 74:26 ratio:
[VAT for line #10] = 20 EUR * 74 / 100 = 14.80 EUR;
[VAT for line #20] = 20 EUR * 26 / 100 = 5.20 EUR
Then, the [negative VAT] subtotal is distributed on the last document line:
[negative VAT] = -9 EUR = [VAT for line #30]