After all the Confirmed berths got exhausted, 24 more people have had purchased the ticket; i.e. the Maximum Waiting List position had moved up to 24.
Now due to some cancellations or may be release of berth/s from special quota, the position have now come down to RAC 115.
(24 Waiting List position had gone down + Some RAC tickets were also cancelled=> If RAC Limit for that particular class for that particular sector is say 120; 5 RAC tickets were also cancelled apart from the 24 Waiting List Tickets)