You could also look up the wholesale cost of gasoline, compare that the current advertised price to figure out what the specific gas stations normal markup is, then see if the wholesale price changes on the date the carbon tax is removed to find out if the gas station was taking an extra big cut.
Anyone who drives at 8am knows that the price could be higher or lower at 805am.
Thanks for your insight.
You could also look up the wholesale cost of gasoline, compare that the current advertised price to figure out what the specific gas stations normal markup is, then see if the wholesale price changes on the date the carbon tax is removed to find out if the gas station was taking an extra big cut.