Confused on Fluke protacal Prazi dosage?

Please confirm Prazi dosage. Confused and don't want to OD. It says dose is 25 mg/kg and you order a 600mg tab. I figured out I weigh about 146lb=66kg now, so:

Tablet = 600mg
Tab Dosage = 25mg x 66kg = 1,650mg
Tab Dosage = 1,650mg divided by 600 = 2.75 tabs(round-up to 3)
Tabs 1 Day = 3 tabs x 3 times = 9 tabs
Tabs 3 Days = 9 tabs x 3 days = 27 tabs
Tabs 6 Days = 9 tabs x 6 days = 54 tabs

So I buy 54 tabs if I want 6 days worth? It comes in 600 mg and supposed to take 25mg PER KG each dose? This makes it look like I would take three 600mg tabs 3 times a day?!

THANK YOU!!!