Hi there! The answer is 10%.
To find our answer we use the following formula:
[tex] part / total \times 100 \% [/tex]
The percentage of rotten pears is
[tex] \frac{22.41}{24.9} \times 100\% = 90\%[/tex]
Therefore
[tex]100\% - 90\% = 10\%[/tex]
Of the pears are good pears.