Help Debut theme, change quantity to 10 if less than 9

[ironsteve]

Hi all, I’m new to Shopify. Hoping I post this in the right place. I’m trying to add an if then statement to my order quantity in the Debut theme. I have minimum order quantity setup so it starts at a value of 10 in the cart, but I want to change it so that if customers enter less than 10, it will automatically change back to 10. Any help would be greatly appreciated.

I tried a couple things and didn’t get very far since I have not programmed a website before. Thanks in advance for your time and help. 

[ironsteve]

Any help getting started would be great. Here is a screenshot of what I have tried so far. It doesn’t seem to do anything.