the price of a cup of coffee has dropped to $2.20 today. yesterday's price was $2.45 . find the percentage decrease. round your answer to the nearest tenth of a percent.

Respuesta :

Yesterday = $2.45
Today =     $2.20

% Decrease =      ((2.45 - 2.20) / 2.45)  * 100%
   
                     =   (0.25/2.45)   * 100%
 
                     ≈       0.1020 * 100%
  
                     ≈ 10.20 %

                    ≈ 10.2 %   to the nearest tenth