Thank you for helping me, please can you show or write the excel formula to understand it.

A1 A B C D E F G H I Problem 12-26 wN Use the data in the spreadsheet below to estimate the beta of Nike stock by using the SLOPE function. Complete the steps below using cell references to given data or previous calculations. In some cases, a simple cell reference is all you need. To copy/paste a formula across a row or down a column, an absolute cell reference or a mixed cell reference may be preferred. If a specific Excel function is to be used, the directions will specify the use of that function. Do not type in numerical data into a cell or function. Instead, make a reference to the cell in which the data is found. Make your computations only in the blue cells highlighted below. In all cases, unless otherwise directed, use the earliest appearance of the data in your formulas, usually the Given Data section. Beta 9 Requirements In cell D. by using cell references, calculate the beta of Nike stock (1 pt.). Notes: (1) Use the SLOPE function with the Nike prices as the known y's and the S&P 500 as the known x's. (2) Do not absolute or mix cell references. Month Jan-02 Feb-02 Mar-02 Apr-02 May-02 Jun-02 Jul-02 Aug-02 Sep-02 12-26 S&P 500 -1.602% -2.074% 3.617% -6.208% -0.878% -7.262% -7.933% 0.519% -10.995% + Nike 6.383% -1.898% 2.013% -11.275% 0.647% -0.101% -8.266% -12.533% 0.151% B19 -8.266% -12.533% 0.151% 9.169% -5.206% -0.479% 0.061% 4.011% 11.100% 4.011% Jul-02 Aug-02 Sep-02 Oct-02 Nov-02 Dec-02 Jan-03 Feb-03 Mar-03 Apr-03 May-03 Jun-03 Jul-03 Aug-03 Sep-03 Oct-03 Nov-03 Dec-03 Jan-04 Feb-04 Mar-04 Apr-04 May-04 Jun-04 Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05 12-26 -7.933% 0.519% -10.995% 8.684% 5.787% -5.974% -2.716% -1.598% 0.878% 8.145% 5.178% 1.202% 1.685% 1.871% -1.139% 5.579% 0.804% 5.167% 1.761% 1.312% -1.586% -1.650% 1.284% 1.836% -3.428% 0.275% 0.944% 1.373% 3.865% 3.223% -2.642% 1.881% -1.996% 4.506% -4.289% -3.350% 10.048% 6.908% 4.986% 5.167% 2.020% 1.678% 5.076% 6.503% -7.682% -1.200% 6.637% -4.131% 3.446% 4.761% 3.030% 3.938% 7.238% -4.681% 0.145% -4.124% D59 X fc 3.46612575344127% 4A B Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05 Apr-05 May-05 Jun-05 Jul-05 Aug-05 Sep-05 Oct-05 Nov-05 Dec-05 Jan-06 Feb-06 Mar-06 Apr-06 May-06 Jun-06 Jul-06 Aug-06 Sep-06 Oct-06 Nov-06 Dec-06 1.373% 3.865% 3.223% -2.642% 1.881% -1.996% -2.130% 2.941% -0.110% 3.445% -1.195% 0.525% -1.986% 3.466% -0.292% 2.291% -0.097% 0.876% 0.963% -3.265% -0.262% 0.212% 1.979% 2.188% 2.855% 1.503% 1.004% 3.030% 3.938% 7.238% -4.681% 0.145% -4.124% -8.036% 6.776% 5.406% -3.507% -6.117% 3.542% 2.583% 1.171% 1.783% -7.086% 6.834% -1.948% -4.210% -2.257% 0.848% -2.874% 1.827% 8.489% 4.459% 7.296% 0.056%