Answer: To calculate the interest rate that would be used to credit interest on funds in Bob's indexed annuity, we can use the point-to-point strategy with a 75 percent participation rate.
The formula to calculate the interest rate is as follows:
Interest Rate = (Ending Index Level / Starting Index Level - 1) * Participation Rate
Using the given information:
Starting Index Level = 1000
Ending Index Level = 1200
Participation Rate = 75% or 0.75
Plugging these values into the formula:
Interest Rate = (1200 / 1000 - 1) * 0.75
= (1.2 - 1) * 0.75
= 0.2 * 0.75
= 0.15 or 15%
Therefore, the interest rate that would be used to credit interest on funds in Bob's indexed annuity, given the specified parameters, would be 15%.