Budgeted manufacturing overhead costs $4,300,000 Budgeted machine-hours 172,000 Actual manufacturing overhead costs $4,140,000 Actual machine-hours 166,000 pop-up content ends. 1. Calculate the budgeted manufacturing overhead rate. 2. Calculate the manufacturing overhead allocated during 2020. 3. Calculate the amount of under- or overallocated manufacturing overhead. Why do Maynard 's managers need to calculate this amount?Why do Maynard 's managers need to calculate this amount? Maynard 's managers need to calculate the under- or overallocated manufacturing overhead at the of the year because the overhead costs allocated are based on . These adjustments affect do not affect the reported income used to evaluate managerial performance