I invite you to write that approach up as a formal set of accounts and find a reputable auditor who will sign off on it. Maybe pre Enron you could have
In your scenario the charity has a profit of $500 (gate) less costs of $200 (your expense) giving net $300. Your donation of time removes $300 worth of cost but it's the difference between the charity making $300 vs making nothing, not $300 vs $600.
Also, if you were not there to draw, how can you take credit for the money paid by people who were drawn?
In the end it doesn't matter. If you make enough when you play and the charity ends up ahead when you donate, all good.
I'm not talking about profit, I'm talking about total contribution/donation.
The charity hopes I draw, but no one actually pays me "to draw." You get paid to play, period, with the expectation that you are good enough people will want to come see you play and they will spend their dollars.
I don't know any club owner who says, "I'm not paying you to play, just for your draw. So, I'll put you on the bill and you don't have to play."
Charities book you to play, and yes, based on your popularity as part of it. Most charities hope you bring people with you, but most, I have found, are looking for entertainment for the event. The cancer society can have many fund raisers that don't include any entertainment. Most of those bomb. Its funny how so many people, including TBers, will say they support a cause but if all they had were 1 hour meetings monthly and you had to pay $5 at each meeting, none of them would go. But have a silent auction, dinner dance, cruise or vegas night? People come.
I am showing the youngun's here how you have to approach the finances and the thought process for benefits and charities and why asking for your expenses is justified.
My fee waiver is a direct donation. They don't have to pay squat. That is a direct benefit to the charity of $500 in this case. If I draw another 50, they just got $500 they would not otherwise have realized. So, my donation of time plus my draw is a direct benefit to them of $1000. Yes, in pure cash its only $500, but in direct benefit its double that.
My point again is that in these situations if you treat them as pure cash transactions you can't really assess them. For example, what is your time to advertise this gig worth? Do you have to pay for the website maintenance? Did you eat up text message limits? Did you spend any time marketing yourself at that event? That costs, in most cases time, but your time is worth something. So to add up the true "cost" you have to add up not just your performance donation but the time you spent with it. Ever hear of the economic term "cost-benefit analysis?"
I used to do this all the time when Phil Crosby's "Quality if Free" was all the rage. The "cost of quality" was not just the cost of the material you threw away, but all the labor it took to make, inspect, sort, quarantine and discard the item, or all the "value added prospects of it." Then, when you wanted to calculate how much "zero defects" type quality systems saved you added up not only the actual cost of the materials you would normally would have thrown away, but also the labor and overhead associated with that item in its form. Hence how they got "quality is free".
Anyway, enough economic and industrial arguing.
Just the way I do business when it comes to benefit and charity events, and I find it makes it much easier to figure out what to do and to show the charity how paying your expenses is still okay.