'Pawan' and 'Qureshi' initiated a business venture with investments in the ratio of 2:3, respectively. After 8 months, 'Rita' became a partner in the business by contributing an amount that was (100/7)% greater than 'Qureshi's investment. After an additional 12 months, 'Qureshi' exited the business. At the conclusion of 2 years, 'Pawan' earned a profit of Rs. 7,000. Determine the difference between the profits received by 'Qureshi' and 'Rita'.