Paras and Punit started a business by investing Rs. 18,000 and Rs. 24,000 respectively. Paras also worked as the active manager and for that he is entitled to receive a commission which is equal to 30% of profit. If the difference between the amount received by Paras and Punit at the end of the year is Rs. 2000, then find the profit (before commission was given to Paras) earned by them.