Suppose that an asset's cash flow decreases at a constant rate of 4% per year. Use the geometric progression.
1. If the asset's initial cash flow is $1,000 (a1 = 1000), what will the asset's cash flow be in 23 years? (a23 = ?)
2. What is the total sum of the asset's cash flows for 50 years (starting from $1,000 initial cash flow)? (S50 = ?)