lily likes to collect records. Last year she had 15 records in her collection. Now she has 18 records. What is the percent increase of her collection?
To find the percent increase in her collection, we need to calculate the difference between the final number of records (18) and the initial number of records (15), and then divide it by the initial number of records. Finally, we multiply the result by 100 to get the percentage.
The difference in the number of records = 18 - 15 = 3
Percentage increase = (3 / 15) * 100 = 20%
Therefore, Lily's collection has increased by 20%.