assumptions.txt

Assumptions:

S = P + I

S - gained investment amount;
P - capital, or initial investment amount;
I - simple interest over period:

I = P*n*i

n - investment period, measured in years;
i - interest rate per annum:

i = f(P)
+---------------------------------+---------------------------------+----------------------------+
| Minimum investment amount, Pmin | Maximum investment amount, Pmax | Interest rate p.a., i=f(P) |
+---------------------------------+---------------------------------+----------------------------+
| £0                              | £1000                           | 1.0%                       |
| £1000                           | £10000                          | 1.5%                       |
| £10000                          | £100000                         | 2.5%                       |
| £100000                         | no limit                        | 5.0%                       |
+---------------------------------+---------------------------------+----------------------------+