Thomas, it's not clear to me that you understand the calculator examples we are presenting. It would help us if you addressed our examples of base price increases. If you revisit my initial three examples (other thread), pay attention to the 9.3% to 19.2% increases in Spreadshirt share that I report. There are additional examples in this thread.

**** PROOF THAT THE ILLUSTRATION IS WRONG ****

(((PART 1))) The illustration above shows that Spreadshirt is LOWERING the base price of the product by 5.7%. Here's why:

Old Spreadshirt share = (print price) + (product type price) = $14.00.

New Spreadshirt share = 80% * (print price) + (new product type price) = 80% * $16.50 = $13.20, as shown. The remaining 20% commission = $3.30, as shown.

The example shows Spreadshirt losing 80 cents ($13.20 - $14.00) in new model relative to the old model. That is, the illustration shows that the new model has LOWERED the base price by 5.7% (0.80/14.00).

We can confirm this more intuitively. The original product commission of $2.50 was only 2.50/(4+2.50+10) = 15% of the "net" price. In order to increase the commission to 20% and yet leave the final price ($18.50) unchanged, Spreadshirt would have to eat the ~5% difference.

On the contrary, the calculator is showing that Spreadshirt is INCREASING the base price by varying amounts (9.3% to 19.2% in my examples).

(((PART 2))) If we choose a base price increase at the low end of calculator results (most favorable to customers), say 10%, we get the most favorable correction for the above illustration.

The old spreadshirt share is $14.00. A base price increase of 10% makes this $15.40 under the new model.

The new net price gives 20% to the shop owner and 80% to Spreadshirt. 80% of $19.25 is $15.40, so $19.25 is the new "net" price of the product.

The new 20% commission is therefore 20% of $19.25 = $3.85.

If we add the design commission, the new price is $21.25 and the new total commission is $5.85. And this is the lowest price scenario!

For kicks, a calculation at a 20% base price increase yields a new "net" price of $21.00 with a 20% commission of $4.20. Add in the $2 design commission and the new numbers are $23.00 product price and $6.20 commission.

The final price in the corrected model is $2.75 to $4.50 higher, and the final commission is 50 to 90 cents higher.