the price of a notebook was $3.70 yesterday. today, the price fell to $3.45 . find the percentage decrease. round your answer to the nearest tenth of a percent.

Respuesta :

Yesterday = $3.70
Today =     $3.45

% Decrease =      (3.45 - 3.70) / 3.7  * 100%
   
                     =   (0.25/3.7)   * 100%
 
                     ≈       0.0676 * 100%
  
                     ≈ 6.76 %

                    ≈ 6.8 %   to the nearest tenth.