CustomerLifetime.py

margin = float(input("Enter the gross margin per customer: "))

churn = float(input("Enter the percentage of customers who end their relationship with a company in a given period: "))

discount = float(input("Enter the cost of capital used to discount future revenue from a customer(discount rate): "))

gc = float(input("Enter the yearly gross contribution per customer: "))

clv = (gc * margin) * ((1 - churn) / (1 + discount - (1 - churn)))

cpl = float(input("Enter the average cost per lead: "))
closing = float(input("Enter your average closing ratio: "))
hours = float(input("Enter the average number of manhours per pitch: "))
hr = float(input("Enter the hourly rate of manhours: "))
th = hours * hr
cpa = cpl + th / closing
nclv = clv - cpa

print ('The customer lifetime value is: %s' % (clv))
print ('The cost per customer acquistion is: %s' % (cpa))
print ('The net customer lifetime value: %s' % (nclv))

A simple customer lifetime value calculator