How to explain the protective put in index options? I can't understand the calculation process in the figure and what each number represents.

MV * B index le. 10 INDEX OPTIONS PROTECTIVE PUT EXAMPLE 6.6 . VALUE OF PORTFOLIO TO BE PROTECTED (000) $29,202 INDEX LEVEL 292.02 BETA HORIZON: 4 MONTHS 4-MONTH PUTS: 250 260 270 280 290 300 PREM 1 1.1875 2.8125 4.875 7.75 11.25 NUMBER OF PUTS NEEDED: 1000 plus purchase put BETA * 29,202,000/(292.02*100) INDEX AT T: X + B 233. 62 (233.62 262.82 (277.42 292.02 321.22 292.01 PORTFOLIO 000) 23,362 26,282 27,742 29,202 32, 122 = - 208 OPTIONS POSITION 2920 2 vvu INDEX( 1 - 20% ) 233.62) 262.82 277.42 292.02 321.22 80% PER UNIT X pur 250 - 233.62 - 1 15.3800 (1.0000) (1.0000) (1.0000) (1.0000) 260 25.1925 (1.1875) (1.1875) (1.1875) (1.1875) JU - 21 / 42 11 . 25 270 33.5675 4.3675 (2.8125) (2.8125) (2.8125) 280 41.5050 12.3050 (2.2950) (4.8750) (4.8750) 290 48.6300 19.4300 4.8300 (7.7500) (7.7500 300 55.1300 25.9300 11.3300 (3.2700) (11.2500) PORTFOLIO AND OPTIONS (000) (worst cuse lowest . 250 24900 26182 27642 29102 32022 2467 260 25881 26163 27623 29083 32003 2240 370 26719 26719 27461 28921 31841 1930 280 27 million. (27513 27513 27513 28715 31635 1598 290 28225 28225 (28225 28427 31347 1231 300 28875 28875 28875 28875 30997 849 290 - 277. 42 - 17. 75 = 4.83 * lost 1 0 0) = 28275 2717 . 42 put furtokilio -5 % 292, 02