Multiply this number by 100 to convert to a percentage. Next, multiply the yield you just calculated by 365 and then divide by the number of days in the maturity period that you determined earlier.

90 100 = 90 % (90 out of 100), so 18 out of 20 marks is 90% of the marks. If using a calculator, you can calculate one number as a percentage of another by dividing the numbers and multiplying by 100.

Learn about and revise how to calculate percentages to solve real life problems, such as compound interest, with GCSE Bitesize AQA Maths.