Can I please get the answer(formula) in excel

La-Z-Boy Kimball Flexsteel 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 36.67% 122.82% 14.44% 21.39% 45.36% 20.19% -8.94% 27.02% -11.64% 20.29% 34.08% 0.20% 61.43% 63.51% 28.42% -7.44% 48.27% -11.28% 12.85% 2.42% 6.90% 22.21% 41.54% 195.09% -38.38% 1.30% 21.89% 9.11% 12.65% 12.08% -17.13% 3.62% 33.46% Leggett & Platt 21.92% 62.27% -1.27% 81.17% 19.83% -10.21% 13.77% 32.55% -6.48% 50.12% 84.40% Herman Miller 26.13% 73.38% 45.15% 24.27% 10.73% -11.92% 7.06% -7.55% 1.31% -5.54% 5.71% Shaw Industries 22.50% 117.89% 7.80% 38.14% 54.48% 26.82% -6.24% 123.03% 15.48% 19.92% 62.76% mean 29.24% 20.68% 25.02% 31.64% 15.34% 43.87%