Find the difference between the number of students who opted for a t...

Read the data carefully and answer the following questions.

There are two colleges Amber and Dhara that offer two courses (Traditional and Professional) in a city in 3 different years 2019, 2020 and 2021.

The Table below shows the data about the number of students who opted for these courses in 2 colleges.

Years	Number of students in Amber and Dhara colleges opted for both the courses	Number of students in Amber colleges opted for traditional courses	Number of students in Amber colleges opted for professional courses	Number of students in Dhara colleges opted for traditional courses	Number of students in Dhara colleges opted for professional courses	Number of students in Dhara college opted for both the courses
2019	150	—-	2P	—-	4P	70
2020	200	—-	2P	—-	—-	80
2021	321	—-	3P	—-	—-	99

Note: 48, 44, and 54 students opted for professional courses at Dhara College in 2019, 2020, and 2021, respectively.

Find the difference between the number of students who opted for a traditional course from Amber college in 2021 and the number of students who opted for a professional course from Dhara college in 2019.