return of investment per day python program

ucost=10000
#.7 => 1 year: 40 lakh,  capital: 2lakh, ucost: 10k
#1 =>1.10 lakhs,300 units, capital : 2lakh, ucost: 10k
roiday=1/100.0
capital=200000
nounits = 0
no_years = 3
days_per_year = 365
basic_family_monthly_expense=15000
good_family_monthly_expense=30000
mile_stone=0
# if we start with 20k investment,  ucost: 10k, roiday: 1% =>
for i in range(0, no_years*days_per_year+1):

    if capital >=ucost:
        nounits= nounits + int(capital/ucost)
        capital = capital%ucost
    else:
        capital = capital + nounits * (ucost *roiday)
    #print i, nounits, capital

    daily_earning = nounits * (ucost *roiday)
    monthly_earning = daily_earning * 30
    yearly_earning = daily_earning * 365

    if mile_stone == 0 and monthly_earning >=basic_family_monthly_expense:
        print "Milestone 1: *Succesful basic basic_family_monthly_expense reached at :", i
        mile_stone =1

    if mile_stone == 1 and monthly_earning >=good_family_monthly_expense:
        print "Milestone 2: *Succesful basic good_family_monthly_expense reached at :", i
        mile_stone = 2

    if i %30 ==0:
        print "Mohtly report:" , i/30
        print "no_units:", nounits, "daily_earning:", daily_earning, ",next monthly_earning with current capacity:", monthly_earning
        pass

    if i % days_per_year == 0:
        print "#------------------------------------------"
        print "After " , (i/days_per_year), " year(s)"
        print "------------------------------------------"
        print "Total units:", nounits
        print "Capital:", capital
        print "Daily earning:", daily_earning
        print "Monthly earning in lakhs:", (monthly_earning/100000)
        print "Yearly eearning in crore:", (yearly_earning/10000000)
        print "------------------------------------------#"