how was the 8.25 value calculated

-30% -20% -10% 0% 10% 20% 30% Risk-free rate $8.25 $8.10 $7.94 $7.78$7.62 $7.47 $7.33 Required return on $8.10 $8.00$7.89 $7.78$7.67 $7.56 $7.46 market Beta $8.20$8.06 $7.92 $7.78$7.64 $7.51 $7.38 Current (DO) $5.44 $6.22 $7.00$7.78$8.56 $9.33 $10.11 dividend Nonconstant $6.45 $6.89 $7.33 $7.78 $8.22 $8.67 $9.11 growth rate Constant growth $6.12 $6.67 $7.22 $7.78$8.33$8.89$9.44 rate