General Product Inc. distributed 100 million coupons in 2016. The coupons are redeemable for 30 cents each. General anticipates that 70% of the coupons will be redeemed. The coupons expire on December 31, 2017. There were 45 million coupons redeemed in 2016 and 30 million redeemed in 2017. What was General's coupon promotional expense in 2017?