Product Design Projects in MissouriProduct Design Projects in MissouriI have a friend who’s a business broker and has been in real estate for many years. Over the years, I’ve worked with him on an off with several of his projects. Additionally, a while back, I tipped my toe into the real estate investing area, so I have a good idea of some of the things the need to know.
The Commission Pricing Calculator was designed to help someone answer a more useful question than simply, “What is my commission?”
It helps them determine:
What will I actually take home from this deal after splits, fees, and deductions — and what needs to change if that number is too low?
The calculator supports both forward and reverse decision-making.
In forward mode, the user can model a deal and immediately see how changes in sale price, commission percentage, brokerage or partner splits, and fees affect the final net amount.
In reverse mode, the user can start with a target take-home amount and work backward to determine the deal size or pricing required to reach that goal.
The goal was to turn commission math from a static calculation into a practical scenario-planning tool.
Input/output structure
The calculator was structured around the pieces of information that materially change the outcome of a commission-based deal.
Inputs
Users can enter:
Sale or deal amount
Commission as either a percentage or flat amount
Multiple labeled fees or deductions
Fees as either percentages or fixed amounts
Multiple commission split participants
Splits as either percentages or fixed amounts
A target net commission when using reverse calculation
The inputs were designed to accommodate real-world deal structures rather than assume a single simple percentage calculation.
Outputs
The calculator returns:
Gross commission
Itemized fees and deductions
Itemized commission splits
Net commission / estimated take-home amount
Required sale or deal amount when reverse calculation is used
Saved scenario data for later comparison
A shareable or exportable calculation summary
The net result was intentionally given the strongest visual emphasis because it is the number the user is ultimately making the decision around.
The system also included validation so invalid percentages, negative values, or impossible split structures would not silently produce misleading results.
Everything recalculates in real time as inputs change, so the agent sees net commission move as they adjust the split or add a fee, rather than running the numbers once and reading a static result. I don't recall ever playing a gig without a setlist, and I know how tedious they can be to put together. Some gigs are casual, but others require much more precise timing — especially when you need to fit a specific number of songs into a set, account for breaks or make sure the entire show stays within its allotted time.
I originally built the Setlist Time Calculator with musicians in mind, but it’s useful for any performer who needs to organize and time a set.
Instead of adding up song lengths manually, you enter each song or performance segment and the calculator keeps track of the running time for you. You can adjust the order, build the complete set and see how the timing changes as you work.
Once the setlist is finished, it can be saved and exported as a PDF in just a few clicks, making it easy to send copies to bandmates, performers, crew or anyone else who needs the final running order.
It’s a simple tool built around a very familiar production problem: making setlist planning faster, clearer and a lot less tedious. 
