With this issue, the thing to remember is that the monthly savings multiplied by 60 will not give you the 5 year analysis. The summary section is just a comparison of full PITI payments against each other, but the total cost section is a comparison of only the unrecoverable costs for each loan over time. For example, your client may save $50 per month on the PITI, but the overall interest savings can be totally different due to term reduction reinvestment, closing costs, MI and shorter amortizations. The 5 year analysis does not take the principal (it is retained in the form of equity), taxes or insurance into consideration as it focuses only on the interest, MI, and closing costs.
Total unrecoverable costs = total interest, MI and closing costs paid in that time period
Total cost savings = difference in total unrecoverable costs over the time period chosen.
This means that in order to show a savings on the new programs, they would need to save enough interest and MI to overcome the closing costs.