What is Purchase Formula?

What is Purchase Formula?


Purchase formula is a formula used to calculate the invoice amount including the discounts and taxes of the purchase. The default Purchase formula is not always helpful to the users as the invoice amount calculation varies
for different suppliers based on the type of origin of the arrived goods, tax and other charges levied over the purchased items. Hence, there is a need for users to configure their own purchase formula that is suitable for their needs. The Purchase formula feature in RPOS7 caters to such needs.

Before going in detail, learn the basics.

A. Gross amount (Basic Amount)
Gross amount is the basic amount. It is the amount which includes purely the purchase price of the items without including other amounts such as a discount, tax, freight charges etc.


Gross Amount = Quantity * Purchase Price

Please refer the below image.

In the above image, the Gross amount and Invoice amount are equal since the invoice does not include a discount, tax, or freight charges etc.

B. Cash Discount
Cash discount refers to a deduction from the original amount and is usually offered by the seller to the buyer. The Cash discount is also referred to as S
ales discount by the seller and as Purchase discount by the buyer.

C. Tax
Tax refers to the additional charges levied on the items based on its origin i.e. from where the goods arrived. It is the amount that is paid to the supplier.

D. Landing Cost
Landing cost refers to the total cost of a landed shipment including Purchase price, freight charges, insurance and other costs incurred till the destination. In some instances, it may also include the customs duties and other taxes levied on the shipment.

Default Purchase formula:
The basic formula is Invoice Amount = A+B+C
A = Gross Amount(+)
B = Cash discount(-)
C = Tax(+)

Invoice amount= (Gross amount) + (-Cash discount) + (Tax)

For more details, click on the links below:

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