Question

If the average grade of an English class rose from 70 to 85, what is the approximate percent increase?

Answer 1

[ (85 - 70) / 70 ] * 100% = 21%

Answer 2

verify that by multiplying 21% by 70, you'll get 14.7 which when added to 70 gives u approx. 85

Answer 3

so the class has improved by 21%