Find each percent increase. round to the nearest percent

  1. From 20 students to 30 students

  2. From $3.49 to $3.89

  3. From 5 miles to 16 miles

Find each percent decrease. round to the nearest percent

  1. From $80 to $64

  2. From 90 points to 45 points

  3. From 64 photos to 21 photos