>The system exists entirely to obfuscate prices sorry, no, it doesn't. Taxes, by law, must be calculated at the point of sale. A penny on each of 5 items could

>The system exists entirely to obfuscate prices sorry, no, it doesn't. Taxes, by law, must be calculated at the point of sale. A penny on each of 5 items could sum to enough to bump the tax on the overal total by a penny. You're not allowed to "round" that extra tax away by computing the tax individually on the items.