22. Rahul and Rohith are partners in firm. Rahul's drawings for the year 2020-21 are given as under: \[ \begin{array}{l} ₹ 4,000 \text { on } 01.06 .2020 \\ ₹ 6,000 \text { on } 30.09 .2020 \\ ₹ 2,000 \text { on } 30.11 .2020 \\ ₹ 3,000 \text { on } 01.01 .2021 \end{array} \] Calculate interest on Rahul's drawings at \( 8 \% \) p.a. for the year ending on \( 31 / 03 / 2021 \), under product method.