

All twenty-three skills share one experience table, so this is one page with a skill selector rather than twenty-three near-identical ones. Pick the skill, pick the range, and the price follows the table: nineteen levels at the bottom cost less than a pound and nine at the top cost a few hundred.
Runecraft and Agility are the slowest in the game at the same level, because the methods are worse rather than because the table is different. If you are picking what to buy, those two give back the most time per pound. Construction and Prayer are the fastest but cost GP on top, which is a separate order.
Nothing is sold to a shop, listed on the Grand Exchange or alched. If a method would be faster using your supplies we ask first. There is a free extra on every order that says exactly this, and we honour it whether or not you tick it.