We are providing a loan for 1 year and wish to tell the customer how much they will pay us per month, taking into account that they will pay
15% up front as a deposit and make
11 monthly payments on the loan (the remaining
So we multiply the total by
0.15 to get the deposit (
15%) - so
£150 up front.
And then (taking account of an APR of
27.1%), to calculate the instalment amount for 11 months, we have been told to take the total price of the product that we are offering, e.g.
£1,000 and multiply it by this "magic value"
This gives us
(£86.93 * 11) + £150 = £1,106.23 total amount repayable, so
£106.23 in interest over the year.
In the domain of financing loans, what is the correct name for this magic multiplicand (
0.08693)? It seems to serve a few purposes all at once:
- It takes care of adding the relevant amount of interest to the loan, whilst simultaneously taking into account the fact that the customer is financing
85%of the loan
- It works out how much the customer would need to pay per month given that there will be 11 payments.
I care from a mostly theoretical perspective as we have modelled this in code and I want to name the constant with an appropriate name.