How to add pricelist in the table form as per the quantity ordered. For example if buyer buys 1-10 pcs then price is x, if customer buy 20-50 pcs then price is y. Below is the example

http://in.element14.com/texas-instruments/lmk61e2-156m25siat/oscillator-low-jitter-156mhz-smd/dp/2526583

I tried to select an option sales > settings > sale price > Advanced pricing based on formula

but dont know where to add formula and even if I add formula, I will not have previlage for the customer segment with such table. can have either or options segment of formula.

Highly appreciate help