Aragon makes handheld calculators in two models-basic and professional. Aragon estimated $1,053,000 of manufacturing overhead and 585,000 machine hours for the year. The basic model actually consumed 160,000 machine hours, and the professional model consumed 425,000 machine hours. The predetermined overhead allocation rate using machine hours as the allocation base is $1.80 per machine hour, with the allocated overhead costs split between the basic model and the professional model by $288,000 and $765,000, respectively