Woocommerce Variations don't change Price

I’m unable to get the Woocommerce price to change based on variation selection. Specifically the price at checkout changes properly, but the price on the product shows a Range ($79-130) instead of showing the actual price of the variation you’ve selected.

You can see the issue here: https://www.petmemorystones.com/product/black-granite-pet-memorial-stone/

How can I fix this so that the price will change as you change your selected variation?
Thanks!