Proofreader requires 100 approvals+rejections, so your distance away is (100 - approvals - rejections).
Q&A about the site for enthusiasts and scholars of mythology and folklore
declare @UserId int = ##UserId## SELECT SUM(CASE WHEN VoteTypeId = 2 THEN 1 else 0 end) Approvals, SUM(CASE WHEN VoteTypeId = 3 THEN 1 else 0 end) Rejections, (100 - SUM(1)) AS VotesStillNeeded FROM SuggestedEditVotes WHERE UserId = @UserId AND VoteTypeId in (2, 3)