Question about Google Pixel 7a

Prices are set according to supply and demand, but also depend on suppliers and the availability of goods.
As prices can fluctuate on a daily basis, a 'Price evolution' tool is available on the page of each item so that you can get a better idea of these fluctuations.
Note that when you add an item to a wish list, you will automatically be notified by e-mail of any price reductions.