Is zakat due on an amount of (12,000) riyals from the sale of gold on which a year has passed, given that a year has not passed since the sale of the gold?

Zakat (definition) is obligatory on gold if a year has passed over it, and it is not for ordinary use, but rather for saving or trade. The Zakat rate is 2.5%. However, if the gold is sold, Zakat becomes obligatory on the amount it was sold for, and if the gold was prepared for acquisition, the year (for Zakat calculation on its price) begins from the time of its possession. If the money is invested in trade goods, it is appraised annually and Zakat is paid on it. But if it is invested in fixed assets, Zakat is on what is earned from them if it reaches the nisab (definition).