Current Attempt in Progress Oriole Company has the following equivalent units for July: materials 29800 and conversion 13750. Production cost data are: Materials Conversion $ 8500 $ 4000 Work in process, July 1 Costs added in July 66000 51000 The unit production costs for July are: Materials Conversion Costs $2.21 $3.71 o $2.21 $4.00 O $2.50 $4.00 $2.50 $3.71