Pam and Lenny's ice cream shop charges $17 for a cone. Variable expenses are $0.37 per cone, and fixed costs total $2,100 per month. A sweetheart 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 $135. Required: a. Calculate the effect of the promotion on operating income for the second week of February (Do not round intermediate calculation and round your final answer to 2 decimal places.) borto Income b. Do you think the promotion should occur? Yes No