The New York State Board of Elections website shows 102,231 write-ins were cast for President last week. The State Board still hasn’t got the number of write-ins for each of the declared write-in presidential candidates. But the very large number of write-ins shows that election officials have gone to a great deal of work, and will continue until the tally is done. Each one of those write-ins must be examined by an election administration employee. This is far more expensive and time-consuming than processing votes for candidates whose names are on the ballot.
The write-in total is 1.28% of the total votes cast. See here. Thanks to Tony Roza for the link.