@dijkistra
I don't know why you're inventing your own case study...
Further,u've not stated how you got your interest figures.... I'm using what I know the Banks use and YES I used to do the interest recomputations for them...
U asked for similar comparison but they also have to be realistic....
So same guy,requires same amount,can only afford same amount in installments...
Here are the terms....
1. The case study is...Mr [dijkstra] needs 300K...Mr [dijkstra] can only afford to pay 10k a month in loan installments... Two SKerians are advising on how he can get that money via a loan...
Sacco option
Save 100,000... for a year....
earn 8,000 in interest....
Borrow 300,000k from the Sacco at 12% interest....
Remembering that he can only afford to pay 10k a month,the loan will take exactly 36 months (3 years) to pay off at a rate of 10k a month...
Total interest = Kshs. 58,461.83...
Net cost = Kshs. 58,461.83 - 8,000 = Kshs. 50,461.83
At the end of 3 years,Mr [dijkstra] has had 400K in capital i.e. 300K borrowed + 100k saved in contributions...
Bank option
Save 100,000 under your mattress...
Interest earned = 0
Borrow 200,000 from the bank at 18% interest....
Remembering that he can only afford to pay 10k a month,the loan will take exactly 24 months (2 years) to pay off at a rate of 10k a month...
Total interest = Kshs. 39,565.35...
loan arrangement and insurance fees (per your own figures) = Kshs. 16,000...
Therefore net cost = Kshs. 55,565.35
At the end of 2 years,Mr [dijkstra] has 300K in capital (100k mattress money and 200k loan).... but while in the sacco he would still be paying 10k in loan installments in the third year,he can now save 10k monthly under his mattress such that at the end of the 3rd year,he will have 420k in capital....
Summary
Sacco 400,000 (Capital) - 50,461.83 (total cost) = Kshs. 349,538.17 (net)
Bank 420,000 (Capital) - 55,565.35 (total cost) = Kshs. 364,434.65 (net)
Bank option still beats Sacco option by 14,896.48
When you post your rebuttal,please state how you came up with your interest figures so that we can show you the error of your ways....
Anyone checked out the Stanchart or Cooperative Bank loan schedules or the NIC bank calculator ???.... Prove my calculations wrong. They are available in the streets of Nairobi...
Those of you interested in doing the above calculations for yourself,Just use MS Excel and the PMT(a/12,b,c) function where a = interest rate per year,b = number of months,c = loan amount.... This gives you the monthly installment... Multiply that by number of months (b) to get total figure repaid.... subtract initial loan... Whallah,you have your interest......