Corrections. INTEREST RATE NEEDS TO BE IN PERCENTAGE. 7.5 IS NOT EQUALS TO 7.5%. YOU’RE BETTER THAN THIS MAN, COME ON! Comments. • I remember telling you time and time again that the interest rate (i) value needs to be divided by hundred because it is a percentage, or use the percentage unit in your calculator as shown in the attached picture. • Please redo all the questions, and I’ll send more soon.