Answer:
Decreased percentage 90.47%
Step-by-step explanation:
Given : decrease of 84 seconds to 8 seconds
To find : percentage
Solution : We have given
Initial value : 84 second
Final value : 8 seconds.
Decreased value : 84 -8
Decreased value : 76 .
Decreased percentage : \(\frac{decreased\value}{initial\value}*100\).
Plugging the values.
Decreased percentage : \(\frac{76}{84}*100\).
90.47%
Therefore, Decreased percentage 90.47%
