The 2.25% is per annum on the minimum balance every month.For example,if you have QR10,000 as your minimum balance on the 30th/31st of the month,the interest on that in that month will be 10000*2.25/100/12= QR18.75.So if your bank gives interest every month,you'll get QR18.75 or if they give interest every 3 months you'll get QR18.75*3=QR56.25.
The 2.25% is per annum on the minimum balance every month.For example,if you have QR10,000 as your minimum balance on the 30th/31st of the month,the interest on that in that month will be 10000*2.25/100/12= QR18.75.So if your bank gives interest every month,you'll get QR18.75 or if they give interest every 3 months you'll get QR18.75*3=QR56.25.