otd-calculator

Use to compute out-the-door (OTD) cost from sale price + state + fees, or reverse-engineer a sales price ceiling from a target OTD. Handles trade-in tax credit if state grants it. Triggers include "compute OTD", "OTD math", "what's my OTD", "reverse OTD to sale price", "算 OTD", "算总价", Spanish phrase