Hector and his roommate Horace are studying the differences between variable and absorption costing for their upcoming quiz. Horace is quite sure that he can predict the difference in income from one costing system to the next just by knowing the following our items for a given period. a2) Given just these items, can Horace calculate the difference in operating income between variable and absorption costing for this eriod? If so, calculate the difference and specify which costing system will show the higher income. If not, explain what other nformation is needed