GCSE Maths Practice: growth-and-decay

\( \begin{array}{l} \text{Which results correctly apply a 20% decrease?} \end{array} \)

Select all correct options:

\( \text{£250 → £200} \) \( \text{£90 → £72} \) \( \text{£120 → £100} \) \( \text{£180 → £144} \)