The cost of annual tution design at a university increased from 10,500 to $11,300. what is the percent increase in tution to the nearest tenth of a percent?

For this case we can make the following rule of three:
 $ 10500 > 100%
 $ 11300 > x
 Clearing the value of x we have:
 x = (11300/10500) * (100)
 x = 107.6190476
 The percentage of growth is:
 107.6190476 - 100 = 7.6190476%
 Round to the nearest tenth:
 7.6%
 
 the percent increase in tution is:
 7.6%