Looking for steps on how to use the data provided in Microsoft Excel using scenario manager. For example If all players played 15 more games what would there statistics be. Please Explain I'm lost.

123 1 X fx 1 Name 2 James Harden 3 Anthony Davis 4 Lebron James 5 Damien Lillard 7 Kevin Durant 8 Russell Westbrook 9 Kyrie Irving 10 LaMarcus Aldridge 11 Victor Oladipo 12 Demar Derozan 13 Joel Embid 14 Bradley Beal 15 Lou Williams 16 Jimmy Butler 17 Kemba Walker 18 Paul George 19 Blake Griffin 20 CJ McCollum 21 Karl-Aanthony Towns 22 Total 231 B C D E F G H I J K L Games played Points FGM FGA FG% 3PM 3PA OREB DREB AST BLK 72 30.4 9 20.1 44.9 3.7 10 0 .6 4.8 8.8 0.7 75 28.1 10.4 19.5 53.4 0.7 2.2 2.5 8.6 2.3 2.6 82 27.5 10.5 19.3 542 1.8 5 1.2 7.5 9.1 0.9 73 26.9 8.5 19.4 43.9 3.1 8.6 0.8 3.6 6.6 0.4 75 26.9 9.9 18.7 52.9 0.6 1.9 2.1 8 4.8 1.4 68 26.4 9.3 18 51.6 2.5 6.1 0.5 6.4 5.4 1.8 80 25.4 9.5 21.1 44.9 1.2 4.1 1. 9 8 .2 10.3 0.3 60 24.4 8.9 18.1 49.1 2.8 6.8 0. 6 3 .2 5.1 0.3 75 23.1 9.2 18 51 0.4 1.2 3. 3 5 .2 2 1.2 75 23.1 8.5 17.9 47.7 2.1 5.8 0. 6 4 .6 4.3 0.8 80 23 8.1 17.7 45.6 1.1 3.6 0.7 3.2 5.2 0.3 63 22.9 8.1 16.8 48.3 1 3.4 2.3 8.7 3.2 1.8 82 22.6 8.3 18.1 46 2.4 6.5 0.7 3.7 4.5 0.4 79 22.6 7.4 16.9 43.5 2.4 6.6 0.5 2 5.3 0.2 59 22.2 7.4 15.6 47.4 1.2 3.4 1. 3 4 4.9 0.4 80 22.1 7.4 17 43.1 2.9 7.5 0.4 2.7 5.6 0.3 79 21.9 7.3 17 43 3.1 7.7 0. 9 4 .7 3.3 0.5 58 21.4 7.5 17.2 43.8 1.9 5.6 13 6.1 5.8 0.3 81 21.4 8.2 18.6 44.3 2.3 5.9 0.7 3.3 3.4 0.4 82 21.3 7.8 14.3 54.5 1.5 3.5 2.9 9.4 2.4 1.4 1478 24.18 2.6