At the beginning of June the business was already working on Jobs T$405$ and T$406$ and two new Jobs namely, Job T$407$ and Job T$408$ were started during June.The following data refers to the activities for the month of June $2006$:

Work in progress $1$ June $2012$:

JobT$405-$ R$18500$

JobT$406-$R$3200$

Direct material issued:

JobT$406-$R$26800$

JobT$407-$R$57400$

JobT$48-$R$64000$

Direct labour hours worked:

JobT$405-250$ hours at R$40$ per hour

JobT$406-840$ hours at R$50$ per hour

JobT$407-960$ hours at R$45$ per hour

JobT$408-1200$ hours at R$70$ per hour.

Additional information:

$•$  Depreciation of manufacturing assets amounted to R$32000$

$•$ Indirect material used, R$18000$

$•$ Indirect labour costs incurred, R$15500$

$•$ Miscellaneous manufacturing overhead costs of R$42500$ were incurred during the month

$•$ Jobs T$406$ and T$407$ were completed.

Question $1$: Calculate the cost of the jobs completed and the cost of the work in progress on JobT$408.$

Question $2$: Calculate the amount of manufacturing overheads over or under applied.