Exactly how Do Contractor's Charge?
https://www.storeboard.com/blogs/general/minecraft-how-to-make-smooth-stone-and-also-smooth-rock-slabs/2534528
Take the square foot of 5,128 divide by 100 (100 sq feet is equal to one square), so you have 51.28. It takes 3 packages per square, so you will increase 51.28 by 3 as well as you will certainly obtain 153.84.