The builder has just announced a new option for Ms. Dee Young to consider. If a homeowner has selected the R-19 insulation, the builder will upgrade the insulation to R-30 for an additional $225. The R-30 insulation will save an additional 175 kWh per year over the R-19 insulation. Is this second insulation upgrade economically attractive based on future worth analysis? The life expectancy, electricity costs, and MARR remain at 23 years, $0.05/kWh, and 9% per year, respectively. Click here to access the TVM Factor Table Calculator. The future worth of R-30 insulation is $ Carry all interim calculations to 5 decimal places and then round your final answer to 2 decimal places. The tolerance is :0.15. R-30 insulation attractive. e Textbook and Media