A cereal company includes one premium coupon in every cereal box. Upon returning 10 such coupons to the company, a customer will be sent a free cereal bowl. In a recent year, the company sold 200,000 boxes of cereal for $1 a box. It is estimated that 20% of the coupons will be returned. If the cereal bowls cost the company $3 each, what amount of liability for coupon redemptions must be recorded by the company?