\(\begin{array}{c|c} & & ₦\\ \hline \text{Raw materials} & \text{stock 1/1/2000} & 4,500 \\ & purchases & 30,000\\ & \text{stock 31/12/2000} & 6,000\\ \text{Wages: direct} & & 34.200\\ indirect & & 10,800\\ \text{factory expenses: rent} & & 18,000\\ insurance & & 3,000\\ \text{work-in-progress: 1/1/2000} & & 3,750\\ \text{31/12/2000} & & 6,750\end{array}\)

The prime cost is

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