Zakat is typically calculated at 2.5% of your savings and assets that have been held for a full lunar year (known as a "hawl"). If you have an annual saving of 9,000, you can calculate your Zakat as follows:
\[ \text{Zakat} = \text{Annual Savings} \times 0.025 \]
Substituting the amount:
\[ \text{Zakat} = 9000 \times 0.025 = 225 \]
So, the Zakat on annual savings of 9,000 is 225.