Answer:
8%
Explanation:
You want to know what percentage of milkshakes had whipped cream if 2 had whipped cream and 23 didn't.
Percentage
The fraction of the total number that had whipped cream is ...
2/(2+23) = 2/25
The percentage is found by multiplying the fraction by 100%:
2/25 × 100% = 8%
8% of the milkshakes had whipped cream.