Respuesta :

bcalle
(change/original)*100
(76/84)*100
90.5% decrease

Answer:

90.48%

Step-by-step explanation:

From 84 seconds to 8 seconds

To find the percentage of increase or decrease. In the data number change from 84 to 8 seconds

So, decreases

Formula:

[tex]\%=\dfrac{Difference}{Original}\times 100[/tex]

Difference = 84 - 8

                 = 76

Original Number = 84

[tex]\text{Decrease Percentage} = \dfrac{76}{84}\times100 [/tex]

                                                   [tex]=90.48\%[/tex]

Hence, The decrease percentage is 90.48%