Calculate the fee for a R400 cash deposit made at a branch counter, given a fee structure of R7 + R1.45 per R100.

From the statement, on 15/05, a cash deposit of R400,00 was made at the branch counter.
From the "Fee description" table, the fee for "Cash deposit: Branch counter" is R7 + R1,45 per R100.

The variable fee is R1,45 for every R100 deposited.
For a R400 deposit, there are $\frac{\text{R}400}{\text{R}100} = 4$ units of R100.
Variable fee portion $= 4 \times \text{R}1,45 = \text{R}5,80$.

Total deposit fee $= \text{Fixed fee} + \text{Variable fee portion}$
Total deposit fee $= \text{R}7,00 + \text{R}5,80 = \text{R}12,80$.

The deposit fee of R12,80 on 15/05 was calculated as: