=ACCRINT( &quot; 28/02/2001 &quot; ; &quot; 31/08/2001 &quot; ; &quot; 01/05/2001 &quot; ; 0.1; 1000; 2; 0)
=INT.ACUM( &quot; 2001-02-28 &quot; ; &quot; 2001-08-31 &quot; ; &quot; 2001-05-01 &quot; ;0.1;1000;2;0)