Lapel Pins pricing error?

I sold six of the following lapel pins 2 months ago.  The subtotal per pin was $2.48 then.   Today they are listed at $18.27 per pin, after 25% off.  My royalty rate is still 14.9%.  So the pins are now selling for almost 10 times as much as before.  Unbelievable!

https://www.zazzle.com/z/av8kglle?rf=238546143102014851

@WBartworks  

The pins have always been in the mid teens as far as I’m aware (even back in 2016 when I sold my first one)

Are you sure the sub-total per pin wasn’t your royalty that you earned?

If it wasn’t, the customer could have used a coupon to bring the price down.

Dog on it!  I didn’t pay attention to details again. I just noticed the customer transferred my design to buttons.