The price of petrol is increased from R12.58per litre to R13.28 per litre. Determine the percentage increase in the price .

The original price of petrol is R12.58 per litre and the new price is R13.28 per litre.

To find the percentage increase, we can use the formula:

Percentage increase = [(new price - original price)/original price] x 100

Substituting the given values:

Percentage increase = [(R13.28 - R12.58)/R12.58] x 100

Percentage increase = [(0.70)/R12.58] x 100

Percentage increase ≈ 5.57%

Therefore, the percentage increase in the price of petrol is approximately 5.57%.