Unexpected behavior of JS parseFloat()

Problem is in float value of number returned by parseFloat.

When I put %

{parseFloat(90.05)}

on excel, the result return me 90,0500030517578.

I have tried this:

%

{parseFloat(Number(90.01).toFixed(2))}

%

{parseFloat(90.01.toFixed(2))}

but the result is the same.