Percentage decrease

Question

Enrollments at a language class have dropped from 420 students in term 1 to 370 students in term 2. What percentage decrease does this represent?

Please show full working

Thank you :)

Answer 1

Percent decrease = [(original value - final value)/(original value)] · 100

 

                        = [(420 - 370)/420] · 100

 

                        = (0.1190476)(100) ≈ 11.9%