Jen and Barrys ice cream shop charges $1.55 for a cone. Variable expenses are $0.26 per cone, and fixed costs total $2,300 per month. A Valentines Day promotion is being planned for the second week of February. During this week, a person buying a cone at the regular price would receive a free cone for a friend. It is estimated that 650 additional cones would be sold and that 850 cones would be given away. Advertising costs for the promotion would be $170.

Calculate the effect of the promotion on operating income for the second week of February