Lily$-$Mae makes handheld calculators in two models: basic and professional. Lily$-$Mae estimated $$812,500$ of manufacturing overhead and $625,000$ machine hours for the year. The basic model actually consumed $250,000$ machine hours, and the professional model consumed $375,000$ machine hours.

Compute the predetermined overhead allocation rate using machine hours $($MHr$)$ as the allocation base. How much overhead is allocated to the basic model? To the professional model?