Calculate A, the total expenses for July. Determine how many people received wages if there were 4 weeks in July.

The table shows Wages as R70 $\times$ 5 $\times$ 4.

A is the sum of all expenditure items: Stock, Wages, New fridge, and New microwave.

The total expenses for July are $\boxed{\text{R}24400}$.

From the table, the calculation for Wages is R70 $\times$ 5 $\times$ 4.
Given that there were 4 weeks in July, the '$\times$ 4' represents the number of weeks.
The 'R70' represents the wage per person per week.
Therefore, the '$\times$ 5' must represent the number of people who received wages.
Thus, 5 people received wages.
The number of people who received wages is $\boxed{5}$.