Live planning model
Convert an all-in budget into a shipment-weight ceiling
Remove the contingency layer first, subtract fixed charges, and divide only the remaining base dollars by the per-pound transport rate. The floor prevents a fractional pound from overstating affordability.
| Calculation line | Starting amount | Divisor or subtraction | Result |
|---|
Current calculation process
Formula, default substitution, intermediate quantities, and check
W_max = max(0, floor((B / (1+c) - F) / q))
B is protected budget, c contingency, F fixed and accessorial charges, and q the entered dollars-per-pound rate. Desired protected cost is (F + desired pounds x q)(1+c).
Five-step target setting
Find the weight your budget can actually support
- Set the all-in budget that must remain unbreached after contingency.
- Separate fixed and accessorial charges from shipment-weight charges using the written estimate.
- Enter the applicable dollars-per-pound planning rate without mixing distance or hourly rates.
- Apply a contingency rate that reflects unresolved scope, then test the desired inventory weight.
- Use the whole-pound ceiling to guide downsizing and retain the estimate, inventory, and exported check.
Five target concepts
Why budget division must follow the cost structure
Protected versus base budget
Dividing by 1 + contingency reveals the base charges that the all-in cap can safely support.
Fixed charges consume capacity
Origin, destination, stairs, storage, packing, or other entered fixed charges leave fewer dollars for pounds.
Marginal weight cost
The entered per-pound rate converts each additional pound into base transport cost.
Floor is conservative
Affordability uses a whole-pound floor so the reported maximum does not cross the base-dollar boundary.
Desired-weight test
The separate cost card shows whether the current inventory estimate fits and by how much.
Symbols and default substitution
Reverse the protected-cost equation
| Symbol | Meaning | Default | Unit |
|---|---|---|---|
| B | Protected all-in budget | 9,800 | USD |
| c | Contingency rate | 10% | decimal |
| F | Fixed/accessorial charges | 2,100 | USD |
| q | Transport rate | 1.35 | USD/lb |
| W_d | Desired shipment | 5,200 | lb |
| W_max | Affordable whole weight | solved | lb |
Default substitution: W_max = floor((9,800 / 1.10 - 2,100) / 1.35), bounded below by zero. The check prices W_max and W_max + 1 to show the rounding boundary.
Three decision lenses
Turn pounds into inventory choices
Fixed-charge pressure
Rerun after confirming stairs, long carries, shuttle, storage, and packing. Added fixed scope reduces the pound ceiling one-for-one through the remaining-dollar numerator.
Rate sensitivity
A small per-pound rate change applies to every pound. Test the written estimate range before using the ceiling as a downsizing target.
Weight evidence
Use a mover inventory or certified weight records where applicable; visual guesses can be materially wrong.
Two target cases
Normal and hard-boundary outcomes
Downsizing before estimate revision
A household compares the 5,200 lb desired inventory with the whole-pound ceiling and identifies furniture to sell before requesting an updated written estimate.
Fixed charges exhaust base budget
If fixed charges equal or exceed budget divided by 1 + contingency, raw capacity is zero or negative and the reported affordable weight is zero, never negative pounds.
Terms
Weight-pricing vocabulary
- Protected budget
- All-in spending cap after the selected contingency.
- Base spend
- Cost before applying the contingency multiplier.
- Accessorial charge
- A charge for an additional service beyond line-haul scope.
- Shipment weight
- Modeled pounds used by the entered transport rate.
- Raw capacity
- Unrounded pounds supported by remaining base dollars.
- Affordability floor
- The greatest whole pound count not above raw capacity.
Weight-target questions
Frequently asked questions
Why divide the budget by 1 plus contingency first?
The entered budget is an all-in protected cap. Dividing removes the contingency layer and identifies the base cost that can fit beneath it.
Why subtract fixed charges before dividing by the per-pound rate?
Fixed charges consume base dollars but do not buy shipment pounds in this model. Only the remainder supports weight-driven cost.
Why is maximum weight rounded down?
A fractional or next whole pound above raw capacity could exceed the protected budget, so the affordability result uses floor.
Can the result replace a written estimate?
No. It is a reverse budget target based on entered cost structure. Obtain and review the mover estimate and service terms.
What if my quote is not priced per pound?
Do not force an hourly, container, volume, or flat-price quote into this model. Use a calculator matching that pricing basis.
Does a desired weight below the maximum guarantee affordability?
Only under the entered fixed charges, rate, and contingency. Changes in scope or pricing can change the result.
Limits and evidence
A target is not a mover invoice
- The formula assumes the entered cost can be represented as fixed charges plus a constant per-pound rate.
- Actual tariffs, minimums, valuation, packing, storage, and accessorial terms may not be linear.
- Contingency is applied uniformly to the modeled base cost.
- Inventory weight estimates and final shipment weight can differ.
Evidence record: retain the written estimate, tariff/rate basis, inventory, weight tickets when available, accessorial assumptions, and exported calculation. This is budgeting support, not a binding price determination.
Sources and connected decisions
Use the written weight and service basis
- FMCSA: Estimating charges — shipment estimates, weight, and service basis.
- FMCSA: Rights and Responsibilities booklet — estimates and shipment documentation.