Sterling Co. includes one coupon in each bag of dog food it sells. In return for 4 coupons, customers receive a dog toy that the company purchases for $1.30 each. Sterling's experience indicates that 60 percent of the coupons will be redeemed. During 2017, 103,000 bags of dog food were sold, 12,470 toys were purchased, and 41,200 coupons were redeemed. During 2018, 113,800 bags of dog food were sold, 15,495 toys were purchased, and 56,900 coupons were redeemed.

Determine the premium expense to be reported in the income statement and the premium liability on the balance sheet for 2017 and 2018.

20172018Premium expense

$

$

Premium liability

$

$