13. Changes and comparisons as percentages Jaa Sulje 1/15 Exercise 15.56 Avaa lomake 1/15 Exercise 15.57 Avaa lomake 1/15 Exercise 15.58 Avaa lomake 1/15 Exercise 15.59 Avaa lomake 1/15 Exercise 15.60 Avaa lomake 1/15 Exercise 15.61 Avaa lomake
