Albertson Corporation began a special promotion in July 2018 in an attempt to increase sales. A coupon was provided at various grocery stores upon checkout. Customers could send in five coupons to receive $3.40. Albertson's management estimated that 70% of the coupons would be redeemed. For the six months ended December 31, 2018, the following information is available:

Coupons distributed	2,800,000
Coupons redeemed	568,000

Required: What is the estimated liability associated with the coupons at December 31, 2018?