Incorrect price on checkout

My items are priced at $14.95 and shipping at $4.55 so the total should be $19.50 but for some reason at checkout it comes to $22.99. Any ideas why this is happening?

Also, how do I change the weight of the products from pounds to kilograms/grams?

http://www.iionzwatches.com/store

Silly me, it was in US dollars instead of Australian.

Stock wasn't subtracted and order isn't there.

how do I change the weight of the products from pounds to kilograms/grams?

This is not an actual weight thing....It is only a unit thing

1= what ever is set

The tutorial link above right is a resource for these basic often asked questions

I searched for kilograms
https://www.zen-cart.com/tutorials/index.php?article=204

Thanks for the super quick response! Only issue is that when I edit the english.php file and upload the file the product page stops working. I've edited it in notepad so how should I edit these php files?

Only issue is that when I edit the english.php file and upload the file the product page stops working. I've edited it in notepad so how should I edit these php files?
That indicates a corrupt edit or transfer
Notepad is an acceptable "plain Text" editor

Are you sure that you are including the pair of single quotes

define('TEXT_PRODUCT_WEIGHT_UNIT','lbs');

Try downloading the one from the server that breaks the site
Open it in notepad and chack gor any leading lines or spaces at the top and trailing lines or spaces at the bottom

If found determine what process is adding/corrupting the file
Most likely FTP

Weird, still not working...maybe I'll try a different way to upload. My orders aren't showing up, payments are received in paypal so I know that people have gone through with the purchase but no orders are in the Admin area? Do I have to activate it somehow?

My orders aren't showing up, payments are received in paypal
In the configuration of the PP module, set logging to on for a time and do a couple of test orders
The logs will indicate any issues