Answer:
5.70%
Explanation:
It takes the time to perform on Ciara's song = 15 seconds
Total time given as 4 minutes 23 seconds ≈ (4×60) seconds + 23 seconds
= 240 seconds + 23 seconds
= 263 seconds
Percent of time taken to perform of the full time =

=

= 5.70 %
Therefore, percent of the time taken for the performance on the full song will be 5.70%