Kenaikan harga premium rata-rata Rp4.887 itu, katanya, dihitung dengan menggunakan harga Rp4.500 selama 23 hari dan harga Rp6.000 selama 8 hari tersisa.
The average fuel price of Rp4,887 a liter was based on the old price of Rp4,500 a liter in the first 23 days of May 2008 and the new price of Rp6,000 a liter in the remaining 8 days, he said.