Most apartment communities have switched to computerized pricing, similar to what hotels and airlines use to set prices. An algorithm continually checks dozens of factors to set prices, and there is no fixed rate for a particular floor plan. As soon as an apartment gets leased or a notice to vacate is entered, it will affect the price of similar available floor plans in the area. This is why you see prices change daily and why a floor plan can go up $100 literally overnight! Other factors like how long of a lease you sign, corner units, premium views, amenities, and finish-outs also affect prices.