I'm sure it is a high number, you don't need to latch onto the 500 units, i just pulled the number out to say the number isnt as high as figures.
But you keep sticking to these it's not as high as needed numbers. For the 1989 1/6 batmobile, Joost was initially looking at 700 units at $1500 a piece for it to be profitable which means covering everything on the payroll. I vaguely remember Joost mentioning needing at least 3 times the amount of 1/6 units for it to be profitable because the earnings are smaller for lesser priced items. If I'm not wrong with what I vaguely recalled then, he would need to sell 2100 units minimum at $500 for the project to even proceed. That 1/10 DeLorean campaign didn't clear 2000 units at $300 a piece if we're only considering the lowest tier. That toy is very detailed with a diecast body. You're going to rely only on the 1/6 crowd when clearly, it was a struggle for them to show up for 250 units at $500 which was unlicensed at that time.