Quantity selector as a dropdown?

[Ryan1998]

Could anyone help me please im looking to change the normal quantity selector to a dropdown.

And want to change the text instead of 

1

2

3

4

To something like

1 - 10% OFF 

2 - 20 % OFF

3 - 30% OFF 

Will donate if anyone can help me with this please!

[Ryan1998]

url : https://errival.com/products/errival-lamp2 

[AnneLuo]

Hi， @Ryan1998 

I can help you with it. But it need to add some custom code. If you need my help. Let me know.