hi,

see your degree course would not completed unless you cleared your backlog. as per ssc cgl 2021 notifications, final year candidates are eligible to apply, if their degree course would complete on or before 01-01-2021. so if your backlog exam results would declare before 01-01-2021, then you may surely apply. for cgpa and percentage give the current marks, if there  is option for waiting of results then select it.