A company's employee has a UIF Contribution of R320, which is 2% of their Gross salary. If their total deductions are R1 280 (8% of Gross salary), calculate their Gross and Net salary.

The UIF Contribution of R320 represents 2% of the Gross salary.
Let $GS$ be the Gross salary.

$$0.02 \times GS = R320$$

To find the Gross salary, divide the UIF Contribution by its percentage:

$$GS = \frac{R320}{0.02}$$ $$GS = R16\,000$$

The Net salary is calculated by subtracting the Deductions from the Gross salary.
The Deductions are given as R1 280.

$$Net\, salary = Gross\, salary - Deductions$$ $$Net\, salary = R16\,000 - R1\,280$$ $$Net\, salary = R14\,720$$

The completed table for the omitted employee is:

Gross salary	Deductions	Net salary	UIF Contribution
R16 000	R1 280 (8%)	R14 720	R320 (2%)

The missing values are:
Gross salary: $\boxed{\text{R16 000}}$
Net salary: $\boxed{\text{R14 720}}$