Minggu, 25 September 2011

SOLUSI PT BORNEO


SOLUSI PT BORNEO
Sales Forecasting
Model Time Serie Moment
Tahun
Sales (Y)
Tahun (X)
XY
X2     
1
1.200
0
0
0
2
1.600
1
1.600
1
3
2.400
2
4.800
4
4
2.800
3
2.400
9
5
2.500
4
10.000
16
Jumlah
10.500

24.800
30
6

5*


åY  = a.n+b.å X Ü 10.500=  5a+10b(X2)=21.000 =10a+ 20b
åXY=a.åX+b.åX2Ü24.800=10a+30b(X1)=24.800=10a +30b
                                                                ------------------------
                                                                -3.800 = -10b
                                                                         b= 380
10.500 = 5a + 10b Ü 10.500 = 5a + 10(380) Ü a = 1.340
Y = a + bX  Ü Y = 1.340 + 380(5*) = 3.240 unit.

Price Forecasting
Model Time Serie Least Squares
Tahun
Sales (Y)
Tahun (X)
XY
X2     
1
9,20
-2
-18,4
4
2
9,80
-1
-9,8
1
3
9,40
0
0
0
4
9,60
+1
+9,6
1
5
9,90
+2
+19,8
4
Jumlah
47,90

+1,2
10
6

+3*


a =   åY/n = 47,90/5 = 9,58    b = åXY/å X2  = 1,2/10 = 0,12
Y = a + bX  Ü  Y = 9,58 + 0,12(3*) Ü  Y = 9,94

                 
(1)
SOLUSI PT BORNEO
Direct Material Costs Forecasting
Model Time Serie Moment
Tahun
DMC (Y)
Tahun (X)
XY
X2     
1
1,30
0
0
0
2
1,70
1
1,70
1
3
1,40
2
2,80
4
4
1,60
3
4,80
9
5
1,80
4
7,20
16
Jumlah
7,80

16,50
30
6

5*


åY = a.n+b.å XÜ 7,80= 5a+10b(X2)=15,60=10a+20b åXY=a.å X+b.å X2 Ü16,50=10a+30b(X1) =16,50=10a +30b
                                                               ------------------------
                                                                -0,09 = -10b
                                                                      b = 0,09
7,80 = 5a + 10b Ü 7,80 = 5a + 10(0,09) Ü a = 1,38
Y = a + bX  Ü Y = 1,38 + 0,09(5*) = 1,83.

Direct Labor Costs  Forecasting
Model Time Serie Least Squares
Tahun
DLC (Y)
Tahun (X)
XY
X2     
1
1,80
-2
-3,60
4
2
1,90
-1
-1,90
1
3
1,70
0
0
0
4
1,95
+1
+1,95
1
5
2,05
+2
+4,10
4
Jumlah
9,40

+0,55
10
6

+3*


a =   åY/n = 9,40/5 = 1,88b = åXY/å X2 = 0,55/10 = 0,055
Y = a + bX  Ü  Y = 1,88 + 0,055(3*) Ü  Y = 2,045
              
(2)

SOLUSI PT BORNEO
Klasifikasi Biaya Overhead Operasi (BOP)
Model: Least Squares Correlation

Thn
Sales
1
1.200
1.650
-900
-690
621.000
810.000
2
1.600
2.150
-500
-190
95.000
250.000
3
2.400
2.350
300
10
3.000
90.000
4
2.800
2.950
700
610
427.000
490.000
5
2.500
2.600
400
260
104.000
160.000
Jml
10.500
11.700


1.250.000
1.800.000

Sales  rata-rata = 10.500/5 = 2.100
Biaya Overhead Operasi  rata-rata = 11.700/5 = 2.340

 b = 1.250.000/1.800.000  b = 0,69444 (VC)         
Y = a + bX   2.340 = a + 2.100(0,694)  a = 882,60 (FC)
Y6 (BOP thn ke enam) = 882,60 + 0,694(3.240) = 3.131,16


Biaya Pemasaran (BP), Model High Low Point

High sales volume  = 2.800    Rp 5.800

Low sales volume   = 1.200    Rp 3.150
Selisih                    = 1.600    Rp 2.650

b = Rp 2.650/1.600 = 1,65625
Y = a + bX   5.800 = a + 1,65625(2.800)  a = 1.162,50
Y6 (BP thn ke enam) =1.162,50 + 1,65625(3.240) = 6.528,75






(3)
SOLUSI PT BORNEO
Klasifikasi Biaya Adminstrasi (BA)
Model: Least Squares Correlation

Thn
Sales
1
1.200
4.900
-900
-2.090
1.881.000
810.000
2
1.600
6.100
-500
-890
445.000
250.000
3
2.400
7.250
300
260
78.000
90.000
4
2.800
9.100
700
2.110
1.477.000
490.000
5
2.500
7.600
400
610
244.000
160.000
10.500
34.950


4.125.000
1.800.000

Salesrata-rata = 10.500/5 = 2.100
Biaya Administrasi  rata-rata = 34.900/5 =  6.990

 b = 4.125.000/1.800.000 b = 2,29167 (VC)
       
Y = a + bX   6.990 = a + 2.29167(2.100)  a = 2.177,49 (FC)
Y6 (BA thn keenam) = 2.177,49 + 2,29167(3.240) = 9.602,50


Struktur Biaya
Jenis Biaya                                      VC                     FC
Direct material costs                     1,83000                  -
Direct labor costs                          2,04500                  -
Factory overhead                          0,69444             882,60
Marketing expenses                             1,65625           1.162,50
Administrative expenses               2,29167          2.177,49
Total                                            8,51736          4.223,59





(4)
SOLUSI PT BORNEO
Anggaran Statis tahun 6
Perhitungan Laba-Rugi
Sales 3.240 unit @ Rp 9,94 .......................................    Rp 32.205,60
Variable cost 3.240(Rp 8,51736)...............................    Rp 27.596,25
Contribution margin.....................................................   Rp   4.609,35
Less fixed cost  ...........................................................    Rp   4.223,59
Operating profit ........................................................    Rp      385,76



Anggaran Fleksibel

Sales volume                   2.000 unit   3.000 unit   4.000 unit
Sales value @ Rp 9,94   19.800        29.820        39.760
VC @ Rp 8,51736           17.035        25.552        34.069
Contribution margin         2.765          4.268         5.691
Fixed costs                       4.224         4.224         4.224
Operating profit             (1.469)             44          1.467

Titik Impas dan Margin of Safety
Tititk impas:1. FC/(1-VC/S) = 4.224/(1-8,51736/9,94)= Rp 29.514
                        2. FC/CMPU = 4.224/(9,94-8,51736) = 2.969 unit
                        3. FC/CMR = 4.224/0,14312 = Rp 29.514
Keterangan:
CMPU = contribution margin per unit
            = P -VC = 9,94 - 8,51736 = 1,42264
CMR   = contribution margin ratio
           = 1-(VC/S) = 1-(8,51736/9,94) = 0,14312

Sales 2.969 @ Rp 9,94 Rp 29,514
VC     2.969 @ Rp 8,51736     Rp 25.288
Contrvbution margin               Rp   4.226
Operating profit …………    Rp          2  (akibat pembulatan)

Margin of safety = (Sales actual - Sales BEP) / Sales actual
(2.500 - 2.969)/ 2.500 = -0,1876 atau -18,76%.




(5)
SOLUSI PT BORNEO

Laba-Rugi
Full Costing
Sales 2.500 unit @ Rp 9,94 …………………….......     Rp 24.850,00
Production 2.600 unit
  Variable production cost
   2.600(1,83000+2,04500+0,69444)=
   2.600 (4,56944)  ……………………………   = 11.880,54
   Foh fixed costs  …………………………….   =      882,60(+)
  Total manufacturing costs  …………………  = 12.763,14
  Inventory 100(12.763,14/2.600)……………  =      490,89(-)
Cost of goods sold …………………………………    Rp 12.272,25(-)
Gross profif on sales  ………………………………..    Rp 12.577,75
Marketing expenses: 1,65625(2.500) +1.162,50 …    Rp   5.303,13
Adm. expenses: 2,29167(2.500) + 2.177,49 ………   Rp   7.906,67(-)
Operating profit (loss) ……………………………..    (Rp     632,05)

(6)
Direct Costing
Sales 2.500 unit @ Rp 9,94 ......................................    Rp 24.850,00
Production 2.600 unit
  Variable production cost
   2.600(1,83000+2,04500+0,69444)=
   2.600 (4,56944) ...................................    = 11.880,54
   Inventory 100(4,56944 ........................    =      456,94
Variable cost of goods sold .......................................    Rp 11.423,60
Gross contribution margin ....................................    Rp 13.426,40
VC marketing expenses and administrative
  expenses 2.500 (1,65625+2,29167)    Rp   9.869,80
Contribution margin .........................    Rp   3.556,60
Less fixed costs  ..................................   Rp   4.223,59
Operating profit (loss) direct costing .................    (Rp      666,99)
Operating profit direct costing ..................................    Rp      666,99
Operating profit full costing .......................................    Rp      632,05
Different ....................................................................    Rp        33,94
Nilai persediaan full costing ......................................    Rp      490,89
Nilai persediaan direct costing  ................................    Rp      456,94
Selisih ........................................................................    Rp        33,95

Keterangan:
Selisih laba operasi full costing dan direct costing harus sama dengan selisih nilai persediaan full costing dan direct costing. Hal itu disebabkan karena pengaruh biaya tetap overhead pabrik. Pada full costing biaya overhead tetap menjadi beban harga pokok penjualan dan sebagian beban persediaan barang jadi, sedangkan pada direct costing seluruh biaya overhead tetap menjadi beban (expenses) yang diperhitungkan pada rugi-laba.


(7)


SOLUSI PT BORNEO
Perhitungan Rugi-Laba
Model Direct Costing :
Sales 3.240 unit @  Rp 9,44 ......................................    Rp  30.586
Biaya produksi:
  Material 3.240 X 1,83 ............................. Rp  5.856
  Labor 3.240 X 2.045 .............................. Rp  6.626
  Factory overhead 3.240 X 0,69444...... Rp  2.250
Harga pokok produksi variable .................................    Rp  14.732
Marjin kontribusi kotor ................................................    Rp  15.854
Biaya usaha variabel:
  Biaya pemasaran 3.240 X 1,65625 …    Rp  5.366
  Biaya administrasi 3.240 X 2,29167…    Rp  7.425
  Jumlah biaya usaha variable ..................................    Rp  12.791
Marjin kontribusi .........................................................    Rp    3.063
Biaya tetap   ................................................................    Rp    4.224
Laba (rugi) usaha .......................................................    (Rp    1.161)
















SOLUSI PT BORNEO

Model Full Costing :
Sales 3.240 unit @  Rp 9,44 ......................................    Rp  30.586
Biaya produksi:
  Material 3.240 X 1,83 .............................. Rp  5.856
  Labor 3.240 X 2.045 .............................. Rp  6.626
  Factory overhead 3.240 X 0,69444 ....... Rp  2.250
  Factory overhead tetap ............................................    Rp     883
Harga pokok produksi full costing ............................    Rp  15.615
Laba kotor atas penjualan .....................................    Rp  14.971
Biaya usaha:
  Biaya pemasaran (3.240 X 1,65625) + 1.163 ........  Rp    6.529
  Biaya administrasi (3.240 X 2,29167) + 2.177 .......  Rp    9.602
Laba (rugi) usaha                                                                                                                                                                                 (Rp    1.160)
Keterangan: laba operasi full costing dan direct costing sama jumlahnya bila tidak ada persediaan barang jadi.

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