The coin opened with a tax of four thousand basis points. Over its first two hundred blocks the tax cools in a straight line to the creator's rate.
blocksIn = currentBlock − startBlock rate = blocksIn ≥ 200 ? taxBps : 4000 − (4000 − taxBps) × blocksIn ÷ 200 surplus = tax at rate − tax at taxBps
The surplus above the creator's rate goes entirely to grounds. Scald exists so that the first minutes of the coin are the most expensive minutes to trade, which takes the edge off sniping, and so that whatever sniping happens anyway builds the floor rather than draining the pot.