Answer :
To calculate percentage increase. Subtract old and new value. Then divide answer by old value then multiply by 100:
289 -242 = 47
47÷ 242 × 100 = 19.4% (rounded to 2 s.f)
To calculate percentage increase. Subtract old and new value. Then divide answer by old value then multiply by 100:
289 -242 = 47
47÷ 242 × 100 = 19.4% (rounded to 2 s.f)