EOQ =
Square root 2 x CO x D / CH
EOQ= number of orders
D/EOQ
EOQ = ordering cost per year=
D/EOQ x CO
EOQ holding cost per year
EOQ / 2 x CH
EOQ Total cost =
Holding cost + ordering cost
OAR - labour hour =
Total budget overheads / labour hour
OAR machine hours =
Total budgeted overheads / machine hours
OAR % direct wages =
Total overheads /direct wages x 100
OAR %prime cost =
total overheads /prime cost x 10
Oar overhead absorbed =
Actual activity x OAR
Oar overhead as % =
Budgeted overhead / activity x 100
Oar overhead absorbed =
% x activity level
Reorder level
Maximum usage x maximum lead time
Minimum stock level
Reorder level - average usage x average lead