Question

Find the percent increase. Round to the nearest percent. From 12 teachers to 48 teachers.

Answer 1

1) To find that out, we'll use proportions:

12 ---------------- 100%

48 --------------- x

Cross multiplying those ratios:

12x = 4800

x= 400

2) Now let's subtract from 100%

400% - 100% = 300

3) Then the increase was 300%