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INSTITUTO TECNOLOGICO SUPERIOR DE COATZACOALCOS


GRACIA TORRES MIGUEL ANGEL


ING. MECANICA







INGENIERIA ECONOMICA




PEDRO IXBACAGAL







COATZACOALCOS VERACRUZ 22 DE JUNIO DEL 2010
Depreciación por suma de dígitos



Formula:Dm=n-m+1(p-VR)/m=1nm
p = $260,000 |
VR = 30% |
n = 7años |
$260,000-.30= 78,000
260,000-78,00028=6,500

m | n-m+1 |
|   | Dm |
1 | 7 | 6,500 | 45,500 |
2 | 6 | 6,500 | 39,000 |
3 | 5 | 6,500 |32,500 |
4 | 4 | 6,500 | 26,000 |
5 | 3 | 6,500 | 19,500 |
6 | 2 | 6,500 | 13,000 |
7 | 1 | 6,500 | 6,500 |

Análisis de reemplazo utilizando LA formula

defensor | retador |
P=260,000 |c.a.a. 13,000 |
CAO = 25,000 | CAO = 28,000 |
VS= 10,000 | no salvamiento |
n= 6 años | n= 6 años |
Formulas
VAD=pAp,i,n+vsAF,i,n-CAO
Formulapara encontrar A/P i(1+i)n(1+i)n-1

Formula para encontrar A/F i(1+i)n-1

Encontrar A/P
i(1+i)n(1+i)n-1 =.30(1+.30)6(1+.30)6-1= 1.44803.8268=0.37834

Para encontrar A/F
i(1+i)n-1 = .30(1+.30)6-1= .303.8268=0.07839

VAD=pAP,i,n+vsAF,i,n-CAO
VAD =-260,000 (0.37834) 30.6 (0.37834) + 10,000(0.07839) 30.6 (0.07839) + (-25,000)
-98368.4 + 11.58 + 0.7839 + 2.3987 + (-25,000)
DEFENSOR VAD =$ -123,353.63

RETADOR VAR = -28,000 – 13,000 = $ -41,000



Tasa de amortizaciónpago a capital: 260,00012=21,666.66 .3012=0.025

Interes mensual:260,000 ×0.025
Mes | Capital | Interés | Pago a capital | Total a pagar |
1 | 260,000 | 6,500 |21,666.66 | 28,666.66 |
2 | 238,333.34 | 5,958.33 | 21,666.66 | 27,624.99 |
3 | 216,666.68 | 5,416.66 | 21,666.66 | 27,083.327 |
4 | 195,000.02 | 4,875.0005 | 21,666.66 |...
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