I have a formula that populates "0.0%" through the spreadsheet because there is not data being calculated. How do I used a "IF" statement and its giving me a #NAME?" error

Here is the formula I typed to leave those field blank and did not work.

=IF(Specific Cell<0.0%>"",=COUNTIFS(Table1[[Trained and device setup complete? Yes]:[Trained and device setup complete? Yes]],"Yes",Table1[[Time Stamp]:[Time Stamp]],">="&B1,Table1[[Time Stamp]:[Time Stamp]],"<="&B2)/COUNTIFS(Table1[[Time Stamp]:[Time Stamp]],"<>"),"")

when putting in the value 0.0% it reverts to 0%