贴现值--作业

使用贴现率8%和12%分别计算每个项目的净现值(NPV).（Python）

贴现因子：为0.08时

n = 0.08
m = 1
i = 0
print("===============贴现率:",n,"====================")
print("===============项目1 贴现值==================")
a1 = -100000
a2 = [10000,10000,10000,20000,100000]
while i<5:
    s = m/(m+n)**(i+1)
    # print(s)
    s2 = a2[i]*s
    #n2 = 30000*m
    #print(n2)
    a1 = a1 + s2
    # print(a1)
    i = i+1
print(a1)
i = 0
print("===============项目2 贴现值==================")
b1 = -1000000
b2 = [200000,200000,200000,200000,300000]
while i<5:
    s = m/(m+n)**(i+1)
    # print(s)
    s2 = b2[i]*s
    # n2 = 30000*m
    # print(n2)
    b1 = b1 + s2
    
    i = i+1
i = 0
print(b1)
print("=================项目3 贴现值===============")
c1 = -100000
c2 = [30000,30000,30000,30000,300000]
while i<5:
    s = m/(m+n)**(i+1)
    # print(s)
    s2 = c2[i]*s
    # n2 = 30000*m
    # print(n2)
    c1 = c1 + s2
    
    i = i+1
i = 0
print(c1)
print("================项目4 贴现值================")
d1 = -120000
d2 = [30000,30000,30000,30000,75000]
while i<5:
    s = m/(m+n)**(i+1)
    # print(s)
    s2 = d2[i]*s
    #n2 = 30000*m
    #print(n2)
    d1 = d1 + s2    
    i = i+1
print(d1)
print("===================================")

贴现因子：为0.12时

n = 0.12
m = 1
i = 0
print("===============贴现率:",n,"====================")
print("===============项目1 贴现值==================")
a1 = -100000
a2 = [10000,10000,10000,20000,100000]
while i<5:
    s = m/(m+n)**(i+1)
    print("贴现因子：",'%.4f' % s)
    s2 = a2[i]*s
    a1 = a1 + s2
    i = i+1
print(a1)
i = 0
print("===============项目2 贴现值==================")
b1 = -1000000
b2 = [200000,200000,200000,200000,300000]
while i<5:
    s = m/(m+n)**(i+1)
    print("贴现因子：",'%.4f' % s)
    s2 = b2[i]*s
    #n2 = 30000*m
    #print(n2)
    b1 = b1 + s2
    i = i+1
i = 0
print(b1)
print("=================项目3 贴现值===============")
c1 = -100000
c2 = [30000,30000,30000,30000,300000]
while i<5:
    s = m/(m+n)**(i+1)
    print("贴现因子：",'%.4f' % s)
    s2 = c2[i]*s
    #n2 = 30000*m
    #print(n2)
    c1 = c1 + s2
    i = i+1
i = 0
print(c1)
print("================项目4 贴现值================")
d1 = -120000
d2 = [30000,30000,30000,30000,75000]
while i<5:
    s = m/(m+n)**(i+1)
    print("贴现因子：",'%.4f' % s)
    s2 = d2[i]*s
    #n2 = 30000*m
    #print(n2)
    d1 = d1 + s2   
    i = i+1
print(d1)
print("===================================")

内部回报率：

n = 0.158926
m = 1
i = 0
print("===============贴现率:",n,"====================")
# print("===============项目1 贴现值==================")
# a1 = -100000
# a2 = [10000,10000,10000,20000,100000]
# while i<5:
#     s = m/(m+n)**(i+1)
#     print("贴现因子：",'%.4f' % s)
#     s2 = a2[i]*s
#     a1 = a1 + s2
#     i = i+1
# print(a1)

# ===============贴现率: 0.101659591 ====================
# ===============项目1 贴现值==================
# 贴现因子： 0.9077
# 贴现因子： 0.8240
# 贴现因子： 0.7479
# 贴现因子： 0.6789
# 贴现因子： 0.6163
# 贴现回报率
# 0.028480038767156657
# ===================================

# ***Repl Closed***


i = 0
# print("===============项目2 贴现值==================")
# b1 = -1000000
# b2 = [200000,200000,200000,200000,300000]
# while i<5:
#     s = m/(m+n)**(i+1)
#     print("贴现因子：",'%.4f' % s)
#     s2 = b2[i]*s
#     #n2 = 30000*m
#     #print(n2)
#     b1 = b1 + s2
#     i = i+1
# i = 0
# print(b1)


# ===============贴现率: 0.0307271 ====================
# ===============项目2 贴现值==================
# 贴现因子： 0.9702
# 贴现因子： 0.9413
# 贴现因子： 0.9132
# 贴现因子： 0.8860
# 贴现因子： 0.8596
# 贴现回报率
# 0.04825905873440206
# ===================================


print("=================项目3 贴现值===============")
c1 = -100000
c2 = [30000,30000,30000,30000,30000]
while i<5:
    s = m/(m+n)**(i+1)
    print("贴现因子：",'%.4f' % s)
    s2 = c2[i]*s
    #n2 = 30000*m
    #print(n2)
    c1 = c1 + s2
    i = i+1
print(c1)
i = 0


# ===============贴现率: 0.443213 ====================
# =================项目3 贴现值===============
# 贴现因子： 0.6929
# 贴现因子： 0.4801
# 贴现因子： 0.3327
# 贴现因子： 0.2305
# 贴现因子： 0.1597
# 贴现回报率
# 0.037686945288442075
# ===================================


# print("================项目4 贴现值================")
# d1 = -120000
# d2 = [30000,30000,30000,30000,75000]
# while i<5:
#     s = m/(m+n)**(i+1)
#     print("贴现因子：",'%.4f' % s)
#     s2 = d2[i]*s
#     #n2 = 30000*m
#     #print(n2)
#     d1 = d1 + s2   
#     i = i+1
# print(d1)


# ===============贴现率: 0.158926 ====================
# ================项目4 贴现值================
# 贴现因子： 0.8629
# 贴现因子： 0.7445
# 贴现因子： 0.6424
# 贴现因子： 0.5543
# 贴现因子： 0.4783
# 贴现回报率
# -0.04344610997941345

print("===================================")