Study the given table and answer the question that follows.
The following table shows the percentage distribution of students in four different schools during the years 2021-22.
If there was a total number of 16,000 and 18,000 students during the years 2021 and 2022 respectively, then the difference in number of students in school 4 in 2022 with respect to 2021 is:
1
240
2
280
3
180
4
380