Plumbing Job Pricing Calculator

Each labor row is hours × loaded rate. When emergency mode is on, the loaded rate is multiplied by the emergency multiplier before the cost build-up, so the surcharge flows through overhead-on-labor too. Parts and trip fee are summed and multiplied by 1 + parts markup %. Overhead is allocated per your chosen method; contingency is a flat % on total cost.

adjustedRate  = loadedRate × emergencyMultiplier (if emergency)
laborCost     = Σ hours × adjustedRate
materialsCost = (Σ qty × unitCost + tripFee) × (1 + partsMarkup%)
overhead      = per method (fixed | %labor | %total)
directCost    = labor + materials + overhead
totalCost     = directCost × (1 + contingency%)
price (margin)= totalCost / (1 − margin)
price (markup)= totalCost × (1 + markup)

Note: the trip fee is included inside materialsCost(), so it also receives the parts markup. If you want no markup on the trip fee, set parts markup to 0% and add your markup to the Pricing Basis instead.