shipping cost calculated by cart value

So basically this is what my client is requesting pertains to shipping costs.

1.) shipping - domestic/int'l (always tricky, I bet hickashop has some support for this) - would love to finally solve this properly - key is to be conservative and not lose $ on shipping (or provide free for > $100)
so basically set shipping cost in tiers..
less than 25$ = shipping cost x1$
26 to 50$ = shipping cost x2$
51 to 75 $ = shipping cost x3$
76 to 100$ = shipping cost x4$
over 100$ = free


Any way to accomplish this task?


Thank you in advance for any insight you can lend. I appreciate the assistance greatly!

-- url of the page with the problem -- : eightforeight.com/joomla/
-- HikaShop version -- : HikaShop Essential 2.2.2, Joomla!™ Online Store Component
-- Joomla version -- : 3.2
-- PHP version -- : 5.4.2
-- Browser(s) name and version -- : chrome
-- Error-message(debug-mod must be tuned on) -- : Error_message