Overhead Apportionment
  Example:Overhead apportionment--Swotathon
  Swotathon Inc has two production departments(A and B) and two pervice departments(maintenance and stores).Details of next year's budgeted overheads are shown below.
  Total($)
  Heat and light                                     19,200
  Repair costs                                        9,800
  Machinery Depreciation                             54,000
  Rent and rates                                     38,400
  Canteen                                             9,000
  Machinery insurance                                25,000
  Details of each department are as follows.
  A        B     Maintenance     Stores      Total
  Floor area                      6,000    4,000     3,000         2,000      15,000
  Machinery book value($000)         48       20          8            4          80
  Number of employees                50       40         20           10         120
  Allocated overheads($000)          15       20         12            5          50
  Service departments' services were used as follows.
  A        B     Maintenance      Stores      Total
  Maintenance hours worked         5,000   4,000      --            1,000       10,000
  Number of stores requisitions    3,000   1,000      --             --          4,000
  Solution
  Item of cost          Basis of apportionment          Department
  A     B   Maintenance   Stores
  $     $        $           $
  Heat and light          Floor area            7,680   5,120   3,840       2,560
  Repair costs            Floor area            3,840   2,560   1,920       1,280
  Machine dep             Machinery value      32,400  13,500   5,400       2,700
  Rent and rates          Floor area           15,360  10,240   7,680       5,120
  Canteen                 No of employees       3,750   3,000   1,500         750
  Machine insurance       Machinery value      15,000   6,250   2,500       1,250
  Total                                        78,030  40,670  22,840      13,660
  Working
  Overhead apportioned by floor area
  Overhead apportioned to department=Floor area occupied by department/Total floor area × total overhead