Baker Co. sells consumer products that are packaged in boxes. Baker offered an unbreakable glass in exchange for two box tops and $1 as a promotion during the current year. The cost of the glass was $2.00. Baker estimated at the end of the year that it would be probable that 50% of the box tops will be redeemed. Baker sold 100,000 boxes of the product during the current year and 40,000 box tops were redeemed during the year for the glasses. What amount should Baker accrue as an estimated liability at the end of the current year, related to the redemption of box tops?