this is the full question that i have

a-1. With a 3.0% inflation rate (Spreadsheet 21.2), by how much would your retirement annuity grow if you increase the savings rate by 1.7%? (Round your answer to 2 decimal places.) Growth in retirement annuity etirement Years Income Growth Rate of inflation Savings Rate 09 income Deflator Saving Cumulative Savings 50,000 1.00 7,5001 7,500 53.500l 1.03 8,025 15,975 70,128 10,5191 61,658 137,9521 1.561 20,693 308,859 271,3721 2.09 40,706 943,477 5318291 2.81 80,0741 2,457,5181 7415673L 1,116,650 Hol Annuity TROR 0291 Consumption 42,500 44.150 51.4191 75264 110.167 161,257 49,660 1.161 Total Retirement Years ..15 Age T Income Growth Rate of Inflation Savings Rate ROR TROR .07 .03 EE2-C271-02) Income Deflator Savings Cumulative Savings rConsumption 150000 1 -B4"$D$2 -04 B4-044 -B4" 1+$B$2) -C41+$C$2)-B5"$D$2 -E4'1SE$2)+05 (B5-D5yC5 -B381 $B$2) 1-c38'(14$C$2-B39"$D$2 -E38 1.$E$2).039B39-0397C39 SUMB4:B39) SUMD4:D39) Real Annuity PMT($F$2,$A$2,-$E$39/$C$39,0,0) 30 65 Total