There are 24 students in a class. Three new students join the class. Work out the percentage change in the number of students in the class. ​

12.5% increase

Step-by-step explanation:

To find the percentage increase ( students joined)

Take the new number minus the original amount

There are 27 students in the class after 3 joined

27 - 24 = 3

Divide by the original amount

3/24 = 1/8 = .125 = 12.5%

12.5%

Step-by-step explanation:

Intial number = 27

Final number = 24 + 3 = 27

Percentage change :-

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons