Originally Posted by

**CoolBoy** A quick and easy way to calculate the rate of return without using a calculator is the "Rule of 72".Basically,you have the product of the interest rare(i),expressed as a percentage,and the number of compounding periods(n) equal to 72.These Values are then substituted in the compounding formula A=P(1+i)^n where P=1.Once calculated,you will notice the value of A can be rounded to a consistent integer value.

a)Complete a table of values for i,n and A=P(1+i)^n where i is from 1 to 15,A calculated to 3 Decimal Places.

b)What is the rounded integer value?What does it mean?