Accra — Petroleum products have increased by between 15 and more than 20 percent, the National Petroleum Authority (NPA)announced. The price increment took effect Monday. The price of petrol (premium) saw the highest increase up 23,08 percent to GH¢3.36 a litre. Kerosene saw an increase of 23,75 percent while diesel increased 22,01 percent to 327pesewas. […]