How Is The Amount Of Zakat Calculated For Tradable Goods?

How is the amount of zakat calculated for tradable goods?

“Tradable goods” are described as the goods sold or purchased for the purpose of making profit. Those who have tradable goods equal or more than the value of 80.18 gr gold, if one year passes upon owning such goods in nisab amount, must give zakat at the rate of 1/40 (2.5%).

Along with other conditions, zakat is given out of the goods which are owned really (haqiqi) or constructively (hukmi) for one year. Possible future increases are not taken into account in the calculation of zakat. The same principle is applicable to tradable goods. In this regard, while giving zakat for tradable goods, regardless of profit to be gained upon sale, the cost value on the date when the zakat is given is taken as basis as if zakat is paid in kind (or out of the goods itself).

Source: Presidency Of Religious Affairs The Turkey, High Board of Religious Affairs FATWA