Assume that you have decided to investone-half of your money in Walmart and the remainder in Target. Calculate the monthlyholding-period returns for your two-stock portfolio as the average of the two stocks' monthly returns. Enter a negative number if the holding-period return is negative.???(Round to two decimal? places.) 

MONTH Jun-13 Jul-13 Aug-13 Sep-13 Oct-13 Nov-13 Dec-13 Jan-14 Feb-14 Mar-14 Apr-14 May-14 Jun-14 Jul-14 Aug-14 Sep-14 Oct-14 Nov-14 Dec-14 Jan-15 Feb-15 Mar-15 Apr-15 May-15 WALMART HPR -0.47% 4.63% -6.36% 1.34% 3.77% 5.55% -2.86% -5.10% 0.03% 2.32% 4.29% -3.69% -2.21% -1.98% 2.61% 1.28% -0.26% 14.78% -1.90% - 1.05% - 1.24% -2.00% -5.11% -2.81% TARGET HPR -0.92% 3.47% -11.14% 1.06% 1.27% -1.33% -1.03% - 10.48% 10.42% -3.25% 2.05% -8.08% 2.10% 2.83% 0.81% 4.34% -1.37% 19.70% 2.58% - 3.03% 4.37% 6.82% -3.95% 0.58% PORTFOLIO HPR % % 7% % % % % % % % % % % % % % 7% % % % %